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R1 10K Brown - Black - Orange C1 100nf Marked 104
R2 150R Brown - Green - Brown C2 47mf 16V Electrolytic
R3 Not used C3 ..022 400V Yellow
R4 1K Brown - Black - Red C4 22pf
R5 750K Purple- Green - Yellow C5 470nf Marked .47k
R6 750K Purple- Green - Yellow C6 22pf Disc ceramic
VR1 100K   1 Main PCB
VR2 22K   2 Paddle PCB
VR3 1M   1 IC Socket
VR4 1M   1 Brass paddle mounting block
X1 4Mhz Resonator   1 Alloy base
TR1 BC546   4 Rubber feet
TR2 7805   4 2.5mm Brass screws
IC1 PIC16C56   6 3mm Screws
1 Relay   2 Brass spacers

Note : Fit capacitors C3, C4 and C6 to the outer holes or to the two holes within the boxed area at each position.
First identify all contponents and their relevant position on the PCB then fit R1 to R6, R3 is no longer used, solder each resistor in place then trim off excess lead.

Fit Xl and Cl to C6 noting the polarity of C2, solder in place and trim oft excess lead. Insert TR1 and TR2 with the flat towards VR2 and fit IC1 socket with the notch towards Xl. Solder in place then trim off excess lead. Fit the DIL RELAY along with VRI and VR2 and solder in.

Using the two 3mm screws fit the brass block to the component side of the PCB then using the four 2.5mm screws fit the two paddles one each side of the brass block with the track side of the PCB pointing outwards. Make the connections between the two paddles and the main PCB using two off cuts of component lead. Insert each of the off cuts into the holes marked dot and dash soldering one end to the paddle then solder each of the other ends to the main PCB ensuring they dont touch the brass mounting screws.

Now check all work, reidentifv all components and confirm their position on the PCB. Check all solder joints and inspect for any solder bridges. If all is satisfactory and BEFORE fitting IC1 apply between 8V and 16V DC to the + and - . Measure the voltage between pins 5 and 14 on ICI socket, it should be 5V, if not, investigate and DO NOT insert IC1 until you have the correct voltage. If all is well and with the power disconnected insert ICl with the identification notch towards Xl and connect a small speaker or earphones to SP and apply power.

Note: VR3 and VR4 control the dash and dot paddle sensitivity which increase as the presets are turned clockwise.
(1) Set VRl (speed) and VR3 to their mid positions.
(2) Set VR4 fully anti clock wise and VR2(volume) fully clock wise.
(3) Touch and hold the dash paddle only between the finger and thumb, dashes will be heard.
Now turn VR4 clockwise increasing the dot sensitivity until alternating dots and dashes are heard then turn back anti clock svisc until tlte dots stop.
Now touch and hold both the dot and dash paddles, a smooth stream of alternating dots and dashes should be heard. If they sound erratic then turn VR3 a touch clock wise decreasing the dash sensitivity and repeat step 4.

Note: The speed can not be altered when a character is playing.

Twin Paddle  l   Single Paddle   l  Hand Key  l  KT1 Key  l   Touch Twin Key   l   EK4 Keyer  l   Morse tutor  l   Vail key  l   Titanic Key  l   Morse Practice Oscillator

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