Unless noted otherwise, connect means to trim the component s leads to a reasonable length, wrap them tightly
around their connection points and solder. (See Soldering Tips on page 5).
SECTION 3 Mount Components to Terminal Strips
Please refer to DRAWING 4.
Connect and solder all the following components to their respective terminals as listed. (Make sure
that none of the component leads are so close together that it could cause an unintended short).
Connect the 0.1
µ
F cap to terminals #2 and #4. This should be mounted upside down to allow
room for other components to be mounted later in the instructions. There will be two more
components connected to terminal #4 so
do not solder at #4, yet.
Connect the 3M resistor to terminals #4 and #5. This resistor should be pushed down to allow
room for other components to be mounted later in the instructions.
Do not solder at #5, yet.
Connect a 10K resistor to terminals #5 and #6.
Do not solder at #5, yet.
Connect the MPSA13 transistor to terminals #3, #4 and #5 as listed below.
Solder all of the
connections at these terminals now
.
Terminals #3: Emitter
Terminals #4: Base
Terminals #5: Collector
MPS
A13
E B C
Connect the 0.1
µ
F cap to terminals #7 and #11. This should be mounted upside down to allow
room for other components to be mounted later in the instructions.
Do not solder at #11, yet.
Connect a 10K resistor to terminals #9 and #10.
Do not solder at #10, yet.
2N
3904
E B C
Connect the 2N3904 transistor to terminals #10, #11 and #12 as listed below.
Solder all of the
connections at these terminals now
.
Terminals #10: Emitter
Terminals #11: Base
Terminals #12: Collector
2N
3906
E B C
Connect the 2N3906 transistor to terminals #12, #13 and #14 as listed below.
Solder all of the
connections at these terminals now
.
Terminals #12: Collector
Terminals #13: Base
Terminals #14: Emitter
8
Connect the remaining 10K resistor to terminals #14 and #15.
Connect the 330pF cap to terminals #18 and #22.
Connect the 820K resistor to terminals #19 and #21.
Connect the 0.22
µ
F cap to terminal #19 and 250K pot lug 1. Mount it so that its leads are not at
risk of shorting out against the pot's body (i.e. don't let the leads touch the body of the pot).
Connect the positive (+) lead of the 22
µ
F cap to 1K pot lug 2 and connect the
negative (-) side to terminal #17. Mount it so that its leads are not at risk of
shorting out against the pot's body.
22µF 50
V
(-)
(+)
Locate the battery snap connector. Connect its red wire to the power
jack's "positive switch" lug and connect its black wire to the input jack's
ring lug
POSITIVE-SWITCH LUG