VIBROPLEX Brass Racer Guide

BRASS RACER IAMBIC ADJUSTMENT INSTRUCTIONS
The Vibroplex Brass Racer is the finest keying device on the market today and is fully adjusted for
optimum “feel”.
The Brass Racer comes complete with wire and 1/4” 3-conductor plug. See example diagrams for
negative or positive wiring. Solid state radios normally use positive keying and tube type negative.
Check your rig's operating manual for the type of keying used.
If constant keying occurs try these three steps for correction:
Step 1. Remove wooden base. Check to make sure the black wire and shield are
separated, then the white wire should not be touching the brass base.
Step 2. Check to see that the plug wires are not touching.
Step 3. If consistency is still occurring try reversing the white and black wires.
For left hand operation, dash on the left paddle, dot on the right paddle, the black wire will go to the right
terminal and the white wire to the left terminal screw (in operating position).
The Brass Racer is factory aligned and will perform well with no further adjustments. You may optimize
the “feel” of the key to your personal tastes by the following adjustments, using the proper tools.
PADDLE - SPACING: *Numbers refer to parts on exploded drawing
Before making this adjustment the contact post screws (8) must be backed out. Each paddle can be
adjusted with the black lever arm adjustment screw (14) located on the vertical block (13). Turn each
adjustment screw until the desired spacing is obtained. By making small adjustments, one at a time,
between these two variables, optimum paddle spacing for your keying technique can be obtained.

CONTACT - SPACING: Spacing between the lever arm contacts (7) and the contact post screws (8)
is realized by adjusting the contact screw to increase or decrease the distance. NOTE: There is a
nylon set screw (11) inside the contact post (10) which puts pressure on the contact post
screw (8). To access this screw, it is necessary to remove the contact post from the base and
use a small flat head screwdriver to adjust. Do NOT remove the contact screw from the
post during adjustment. Once the screw is adjusted for satisfactory tension, remount the
contact post to the base.
PADDLE TENSION: Each paddle may be separately adjusted for optimum tension. Moving the
magnets closer to the paddle arm increases tension. Moving the magnets away from the paddle arm
decreases the tension. To adjust the tension, grasp the brass magnet holder (17) on the back side of the
vertical block (13) and, using a twisting motion, slide the magnet to the desired distance from the paddle
arm, then release. NOTE: Removing the magnet holder completely could result in loss of the
small magnet tension spring (15) and the magnet tension ball (16). If the magnets are placed
too far away, the key will lose its positive feel. Usually the CW operator will not find it necessary to
change the initial adjustment.
RUBBER FEET: To renew non-skid properties clean feet regularly with mild soap and water.
The Brass Racer is designed for the serious CW operator, those who put their best fist forward. You can
increase your sending speed by using the fingertips sending method. There is a lot less mass in motion if
you use just your fingers, as opposed to your wrist and arm. Keep arm and body movement at a
minimum. Concentrate on moving the thumb and first finger only.
Note: On SQUARE BRASS RACERS, lever arms with paddles are shipped removed from key to
prevent damage in shipping.

BRASS RACER IAMBIC TRIANGLE Parts List 07/15/2019
Part Part
Price
Qty Amount Part Part Price Qty Amount
Number Name (Price x Qty) Number Name (Price x Qty)
BR-1 4029 7.00 BR-23 7043 Bra Ba e 45.00
BR-2 4030 7.00 BR-24 7042 Wooden Ba e (Iambic) 22.00
BR-3 4026 Paddle Screw 1.50 BR-25 6092 Stick-on Feet (each) 1.00
BR-4 6086 Paddle Roll Pin 1.50
BR-5 6021 Lever Arm 10.00
BR-6 6083 3.00 ASSEMBLIES
BR-7 4009 Silver Contact*** 5.00 BR-A 418 Contact Po t Screw
BR-8 6078 Contact Po t Screw 1.50 (Include BR-7 & BR-8) 8.00
BR-10 6076A Contact Po t 12.00 BR-B 416 Lever Arm Include
BR-11 6077 Contact Po t Set Screw 1.50 BR-5 & BR-7 17.00
BR-12 8035 Nylon In ulator 1.50 BR-C 318 Right Paddle include
BR-13 1998 Vertical Block 35.00 BR-1, BR-3,& BR-4 8.50
BR-14 6088 Lever Arm Adj. Screw 1.50 BR-CA 319 Left Paddle include
BR-15 6087 Hinge Pin 3.00 BR-2, BR-3, & BR-4 8.50
BR-16 6084 Magnet Ten ion Spring 1.50 BR-D 114 Vertical Block include
BR-16a 6093 Magnet Ten ion Ball 1.50 BR-13 & BR-15 48.00
BR-17 414 Magnet w/holder 18.00 BR-E Mi c. Contact Po t A embly
BR-20 8042
Contact Po t Bottom Screw
1.50 Include BR-7, 8 10, 11) 25.00
BR-21 8044 Vertical Block Screw 1.50
BR-22 8041 Wood Ba e Mounting Screw 1.50 Subtotal
Shi ing and Handling (See Note #5)
TOTAL AMOUNT ENCLOSED
ORDERING INFORMATION
(Call) (Date)
(Name) (Street)
(Telephone) (City) (State) (Zip)
Card #:
Exp. Date:
Check/Money Order
(Signature)
NOTES
1. Plea e upply complete treet addre or po t office box and zip code.
3. Plea e be ure that the form i legible and completely filled out.
4. If po ible, include a day time phone number where you can be reached,
5. Small arts minimum for USA shi ing is $4.08, Canada $10.05, international $13.82
THANKS FOR YOUR ORDER
Right Blk Paddle w/roll pin
Left Blk Paddle w/roll pin
Trunion Screw
(Email Address)
Credit Card (Vi a, Ma tercard, Di cover)
2.***If you need new contact , plea e refer to our Contact Replacement Service at www.vibroplex.com.
6. The Bra Racer EK-1 i ob olete. No electronic part for keyer circuit available.
Vibro lex, 1001 N. BROADWAY, Knoxville, TN 37917 [phone] vibro lex@vibro lex.com