Hagerman Technology Cymbal User manual

HAGERMAN
T E C H N O L O G Y
Cymbal
8 Watt Monoblock Amplifier

Cymbal Monoblock Kit Manual
2
Warnings
This product uses dangerous and potentially lethal voltages. Extreme care must be taken
while assembling this amplifier and should only be attempted by a skilled technician.
The instructions in this manual are a suggested guide only and no liability is assumed by
Hagerman Technology LLC.
Copyrights & Trademarks
©Copyright Hagerman Technology LLC 2004. All rights reserved. No part of this
document may be photocopied, reproduced, or translated to another language without the
prior written consent of Hagerman Technology LLC.
Disclaimer
The information contained in this document is subject to change without notice.
Hagerman Technology LLC shall not be liable for errors contained herein or for
consequential damages in connection with the furnishing, performance, or use of this
material. See Chapter 6 for warranty information.

Cymbal Monoblock Kit Manual
3
1 Before You Begin
Description
Congratulations! You have just purchased one of the highest performance-per-dollar
audiophile products available. The Cymbal monoblock amplifier is intended to bring
high-end audio and construction quality into the hands of do-it-yourselfers. It is part of a
line of vacuum tube products based on a common chassis and circuit board architecture.
The design is optimized for both ease of assembly and sonic excellence.
Circuit topology is the classic push/pull output driven by a fully balanced differential
input/driver stage. Both stages operate in class-A and use no negative feedback.
Designed around the ultra-linear 6H30 supertube, this unique amplifier is optimized for
sonics rather than raw power. Its exceptionally low output impedance retains powerful
and clean bass without sacrificing a SET-like midrange. The monoblocks are built in
mirror-image pairs (left channel shown on cover). A second input offers capacitive
coupling and can be designed to set a specific high-pass turnover frequency for systems
operating with a subwoofer.
The half-kit consists of these instructions, blank circuit boards, and 1:1 drill guides. You
must purchase the remaining components from DigiKey, Antique Electronic Supply;
New Sensor, and Lansing Instruments. You may also substitute parts from your own
stock.
Features
• All vacuum-tube signal path
• Pure class-A amplifier stages
• No feedback
• Fully balanced differential input stage with ground lift
• Vacuum tube B+ rectification with choke regulation
Tools
This is a kit product and construction should only be attempted by skilled electronic
technicians. Chassis metalworking is also required. You will need an array of shop tools
and a good soldering iron. If you are at all unsure of this, send it back!

Cymbal Monoblock Kit Manual
4
2 Parts to Buy
Kit
If you purchased factory assembled Cymbals, skip to Chapter 5. The kit does not need to
be built as specified, part substitutions or upgrades can be made at your discretion. It is
recommended you read this entire manual before starting.
Modifications
Here are a few simple modifications and upgrades possible to customize your unit.
 Upgrade signal capacitors to “auricap” brand: Change C8 to AES #CAUD1-450.
Change C7 and C15 to AES #CAUD47-450.
 Upgrade to gold plated RCA jack: Change J1 to AES #S-H267W.
 Change chassis anodize color from clear to black: Use Lansing #B2H12-V01B.
 Bolt both chassis together side-by-side for a 19” rackmount fit using four #KCOUP
bolts from Lansing.
 For testing, it is handy to buy a #8.2W-10-ND power resistor from DigiKey..
You can also run this amplifier with a balanced input connector (DigiKey #SC1009).
Connect pin 1 to ground, pin 2 to positive, and pin 3 to negative input (lifted ground).
Set LIFT switch to open or do not install.
Parts List
Parts should be ordered directly from www.digikey.com, www.tubesandmore.com
(AES), www.sovtek.com (New Sensor), and www.lansing-enclosures.com. The parts
lists on the following pages are for one amplifier, quantities must be doubled for a pair.

Cymbal Monoblock Kit Manual
5
Component Qty DigiKey References
100uF 350V 4 493-1442-ND C3, C4, C9, C14
220uF 16V 1 493-1284-ND C10
100nF 50V 2 EF1104-ND C6L, C6R
1uF 400V 4 PF4105-ND C12, C13, C22, C23
470nF 400V 2 PF4474-ND C7, C15
100nF 400V 1 PF4104-ND C8
10nF 2kV 3 P11423CT-ND C1, C2, C5
1N4148 2 1N4148FS-ND D1, D2
LED R/G 1 160-1715-ND D3
Power Cord 1 Q120-ND
Grommet 10* RP456-ND
Feet 4 SJ5523-0-ND
Standoff #4 x 1 10* 4806K-ND
Nylon Spacer 10* 1457AK-ND
Fuse 2 F2419-ND
Dome, LED 1 L30032-ND
Grounding Post 1 J587-ND
RCA Jack 1 CP-1435-ND J1
AC Input 1 CCM1647-ND
Fuse Holder 1 WK0011-ND F1
Terminal 30* 1285K-ND
Crimp 30* A27804-ND
Switch 1 EG1903-ND S1
Heat Sink 4 HS372-ND
2N3904 2 2N3904FS-ND Q3, Q4
2N3906 2 2N3906FS-ND Q1, Q2
Pot, 100k 1 3386P-104-ND R28
1.0 1/2W 5* 1.0H-ND R23, R35
22 1/2W 10 22H-ND R11, R13, R17, R19, R26, R27, R38,
R41, R43, R44
220 1/2W 15* 220H-ND R5, R12, R15, R16, R18, R20, R36,
R37, R39, R40, R42
2.2k 1/2W 5 2.2KH-ND R7, R8, R29, R31
10k 1/2W 5* 10KH-ND R2, R6
22k 1/2W 5* 22KH-ND R21, R33
47k 1/2W 5* 47KH-ND R22, R25, R30, R34
1.3k 2W 2 P1.3KW-2BK-ND R9, R46
220k 2W 1 P220KW-2BK-ND R4
220 3W 2 P220W-3BK-ND R24, R32
330 3W 2 P330W-3BK-ND R1, R3
4.7k 5W 2 ALSR5F-4.7K-ND R10, R45

Cymbal Monoblock Kit Manual
6
Component Qty AES References
Wire 2 S-WS16
Binding Post 1 S-H263 J3
Socket, 8-pin 1 P-ST8-193G V1
Socket, 9-pin 5 P-ST9-214G V2, V3, V4, V5, V6
Tranny, Power 1 P-T370FX T1
Tranny, Output 1 P-T1615 T2
Choke 1 P-T158Q L1
5AR4 1 5AR4
Screw #10 2* P-H245
Nut #10 2* S-HHN1032
Washer #10 2* S-HLW10
Screw #4 3* S-HS440-14
Nut #4 2* S-HHN440
Lug 1* S-H112
Component Qty New Sensor References
6H30 5 6H30pi
Component Qty Lansing References
Chassis 1 B2H12-V01A
* Minimum purchased quantity.

Cymbal Monoblock Kit Manual
7
3 Assembly
Chassis
The instructions below refer specifically to the Lansing Instruments’ enclosure. Follow
these step-by-step instructions to machine the chassis pieces. If you plan to use upgraded
RCA jacks or other controls, some mounting holes will not be the same as those specified
on the drill guides; they need to be lowered to prevent interference with the circuit board.
The monoblocks are built in mirror-image pairs. The top cover drill guide is drawn for
the left channel. Flip over to use for right side. The LED dome and output binding posts
are on the left for the left channel (front view), and vice-versa. Ground jack goes on
RCA jack input side.
 Use a scissor to notch out the four alignment holes in the printed drill guide.
 Place the drill guide on top of a blank top cover; align so the mounting holes are
centered in the crosshairs. Use a metal punch (sharp nail) to mark the center of
each hole.
 Cut out the rear panel drill guides using a straight edge and razor blade. Mark
hole centers and outline of ac input cutout.
 Carefully drill holes on top cover, front and rear panels. Large holes are best
done using punches, but a step-drill also works fine. A file may be needed to get
a clean rectangular cutout on the rear panel.
 Wash with dishsoap to remove fingerprints and grime.
Circuit Board
Assemble in the following order, solder and clip leads before continuing. Not every spot
on the circuit board is populated. Many parts are marked either “L” or “R” to indicate
channel. Only those parts needed per channel are used, refer to schematic.
 Solder sockets onto the backside of circuit board. Insure rotation of octal socket
is correct (see dimple). Only one driver tube V2 is used.
 Add six standoffs to bottom of circuit board using #4 nuts.
 Add four grommets.
 Install quick release terminals (for transformer wiring).
 Install all resistors and potentiometer.
 Install diodes and transistors.
 Install all capacitors.

Cymbal Monoblock Kit Manual
8
 Install fuse holder.
 Install RCA jacks and ground lift switch.
 Install inductor using #6 screws and short nylon spacers.
 Install heat sink shields near RCA connectors and transformer wiring. These are
used only for shielding purposes.
 Install LED onto backside of circuit board. Keep leads as long as possible (about
one inch). Tab on side labeled “*”.
 Optionally soak and brush assembly in 99% isopropyl alcohol to remove solder
flux residue. Blow dry.
Completed circuit board (left channel).

Cymbal Monoblock Kit Manual
9
Integration
If built properly, everything should fit together like a glove. The chassis anodization acts
as an electrical insulator. Make sure to scrape down to bare metal under the chassis
screws to insure complete Earthing of all panels.
 Install rubber grommets to top cover.
 Install LED window to top cover.
 Mount transformers to top cover using the #10 hardware with ac primary and
output secondary wires towards outside.
 Mount circuit board assembly to top cover, routing transformer wires through
grommets.
 Cut length of transformer wires to 5 inches above circuit board. Save the scraps!
 Add crimp terminals to all of the power transformer wires.
 Plug in the transformer wires to the terminals on the circuit board. Use the
silkscreened chart for proper voltage selection.
 Add crimp terminals to both ends of scrap wires colored brown, blue, and
brown/yellow.
 Add crimp terminals to one end of scrap wires colored green and green/yellow.
 Solder both open ends of the green and green/yellow wires to the eyelet lug.
 Install the ground jack to rear panel with above eyelet lug secured under the nut.
 Install ac input connector.
 Connect the brown/yellow wire from the L terminal to a switch terminal. Connect
the brown wire to the other switch terminal. Connect the blue wire to the N
terminal, and the green/yellow wire to the E terminal.
 Connect L (brown), N (blue), and E (green) wires from rear panel to terminals on
circuit board.
 Secure rear panel to assembly using a #4 screws on the RCA jack.
 Add chassis side panels.
 Solder output transformer primary wires into the color labeled holes. Solder the
secondary wires into the “G”, “S”, “O”, and “H” holes per impedance chart.
 Solder approximately 16 inches of output speaker wire to the “G” and “H” holes.
Lightly twist and solder to the rear panel binding posts. Insure the “G” wire
connects to the black post.
 Install front panel.
 Add fuse.
 Install vacuum tubes
 Add feet to bottom cover. Do not install until after testing.

Cymbal Monoblock Kit Manual
10
Completed assembly (left channel).

Cymbal Monoblock Kit Manual
11
4 Testing & Installation
Testing
Double-check all of your work before applying power. Wear safety glasses, turn on the
power and check for smoke. The LED should be red, and then switch to green after
about 20 seconds. This indicates both heater and high voltage circuits are working.
 Measure power supply and plate voltages using a DVM. Voltages are marked on
circuit board and schematic. Due to tube variations, these voltages will range as
much as +/-10V.
 Connect a DVM across the test points labeled “M+” and “M-“. Adjust
BALANCE pot until a zero reading is achieved.
 Apply a large 8 ohm resistor across the outputs.
 Connect a 1kHz sinewave signal and observe output on oscilloscope.
 Turn off, remove power cord and install bottom cover. Your Cymbal is now
ready for use.
Square wave performance at 10kHz and 1kHz residual distortion.
Connections
The Cymbal connects to your audio system just like any other power amplifier. In some
installations where the amplifiers are remoted from the signal source, you can use the
ground lift switch S1 to disconnect signal ground from amplifier ground. The differential
input stage has a common mode range of about +/-1Vdc, which helps to eliminate
possible ground loop induced hum. Use the quietest setting.
There are two input RCA jacks. The upper one is direct, lower is capacitively coupled.

Cymbal Monoblock Kit Manual
12
5 Specifications
The following specifications are subject to change without notice.
Item Specification
Power 8W into 8 ohms (see graph)
Gain 15dB (1.5Vrms for full output)
Input Impedance 47k ohm
Bandwidth (-3dB) 10Hz to 95kHz
Distortion 0.18% @1kHz @ 1W
SNR 95dB A-weighted
Damping Factor 5
Size (PCB) 7.25 x 11.65 inches
Size (Chassis) 8 x 12 x 3 inches
Input Voltage 100V, 110V, 120V, 200V, 220V, 240V
Tube Compliment 6H30 x 5, 5AR4 x 1
Distortion vs. output power @1kHz

Cymbal Monoblock Kit Manual
13
6 Warranty & Service
Warranty
Hagerman Technology LLC warrants this product free of defects in materials and
workmanship for 10 years (90 days for tubes). If you discover a defect, Hagerman
Technology LLC will, at its option, repair or replace the product at no charge to you
provided you return it during the warranty period, transportation charges prepaid to
Hagerman Technology LLC. This warranty does not apply if the product has been
damaged by negligence, accident, abuse or misuse or misapplication, has been damaged
because it has been improperly connected to other equipment or has been modified
without the express written permission of Hagerman Technology LLC. This warranty is
limited to the replacement or repair of this product and not to damage to equipment of
other manufacturers.
Any applicable implied warranties, including warranty of merchantability, are limited in
duration to a period of the express warranty as provided herein beginning with the
original date of purchase and no warranties, whether express or implied shall apply to the
product thereafter.
Under no circumstances shall Hagerman Technology LLC be liable for any loss, direct,
indirect, incidental, special, or consequential damage arising out of or in connection with
the use of this product.
Service
Refer to Chapter 4 for troubleshooting information. If the problem persists, contact
Hagerman Technology for service at www.hagtech.com.
Hagerman Technology LLC
PO Box 26437
Honolulu, HI 96825 USA
808-383-2704 (voice)
808-394-6076 (fax)

DRILL
GUIDE
Ø0.688in
(4places)
Ø0.187in
(8places)
Ø1.375in
Ø1.125in
(5places)
Ø0.125in
(6places)
countersinkØ0.359in
(left)

Ø0.500in
(2places)
Ø0.438in
(2places)
Ø0.250in
Ø0.125in
countersink
1.060in
1.540in
(right)
(left)
DRILLGUIDE

A A
B B
C C
D D
E E
F F
G G
5 5 4 4 3 3 2 2 1 1
4 6
red red red/yel yel yel yel/blk grn grn grn/yel
L E N
vio
8 2
Blu/Yel Brn/Yel Blu Brn Blk Blk/Red Wht/Blk Wht
100V 110V 120V 200V 220V 240V NC NC NC NC
NC NC NC NC
NC NC NC NC
NC NC NC
NC NC
NC
NC NC NC
NC NC
NC SSS
SSS
LLL
LLL
LLL
NNNNNN
NNN
This document contains proprietary information and except with written permission of Hagerman Technology LLC such information shall not be published, or disclosed to others, or used for any purpose, and the document shall not be copied in whole or in part. Copyright Hagerman Technology LLC 2004. All rights reserved.
blu/yel blu wht wht/blk blk/red blk brn brn/yel
L N S
SLO-BLO
6V3ac
GR
158Q
NOTES:
8mA
4 5
1. ALL RESISTORS 1/2W UNLESS SPECIFIED.
4V
n/a A
Cymbal: Power Supply Hagerman Technology LLC P.O. Box 26437 Honolulu, HI 96825
12Thursday, September 02, 2004
Title Size Document Number Rev Date: Sheet of
200V@150mA
R2 10k C1 10nF AC C6 200nF 2x50V
F1 1A
C5 10nF AC
R3 330 3W
T1 370FX
V1 5AR4
L1 5H
C3 100uF 350V
C2 10nF AC
C4 100uF 350V
H4 6H30
H2 6H30 H3
6H30
R7 2k2
D3 LED
R5 220
D1 1N4148 D2 1N4148
R4 220k 2W
Q1 2N3906 Q2
2N3906
R6 10k
R8 2k2
R1 330 3W
H5 6H30 H6
6H30

A A
B B
C C
D D
E E
F F
G G
5 5 4 4 3 3 2 2 1 1
This document contains proprietary information and except with written permission of Hagerman Technology LLC such information shall not be published, or disclosed to others, or used for any purpose, and the document shall not be copied in whole or in part. Copyright Hagerman Technology LLC 2004. All rights reserved.
DC BALANCE
blu blu/yel red brn/yel brn blk
grn blk/yel yel grn/yel
NOTES:
8 6
1. ALL RESISTORS 1/2W UNLESS SPECIFIED.
7V 13V
4.5V
2
3
15mA
15mA 180V 100V 1.2V
1
7
H O S G
YEL G/Y B/Y GRN BLK
4816 OOH HH H
SS
S
GGG
GG S
n/a A
Cymbal: Amplifier Hagerman Technology LLC P.O. Box 26437 Honolulu, HI 96825
22Monday, October 04, 2004
Title Size Document Number Rev Date: Sheet of
200V@150mA
R33 22k
V2B 6H30
R44 22
R30 47k
C15 470nF 400V
V4A 6H30
C13 1uF 400V
R45 4k7 5W
R40 220
R34 47k
R39 220
R42 220
V4B 6H30 R43
22
J1 DC
C12 1uF 400V
J3 Output
1 2
C14 100uF 350V
T2 1615
R27 22
R24 220 3W
R35 1R0
R29 2k2
C10 220uF 16V
V6B 6H30
R36 220 V6A
6H30
R37 220
R41 22
R38 22
R46 1k3 2W
Q4 2N3904
R31 2k2
R26 22
Q3 2N3904
R32 220 3W
R25 47k
J1 AC C8
100nF 200V
R23 1R0
R28 100k
R19 22
C9 100uF 350V
R16 220
R20 220
R21 22k
R10 4k7 5W
R17 22
V5B 6H30
V2A 6H30 R18
220
V3B 6H30
R12 220
C7 470nF 400V
V5A 6H30
R22 47k
R11 22
R15 220
R9 1k3 2W
R13 22
V3A 6H30
S1 LIFT
C22 1uF 400V
C23 1uF 400V