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FR-220
•
10
NOTE CONCERNING THE AUDIO OUTPUT JACK
Your receiver kit is supplied with a standard subminiature 2.5 mm
(3/32”) audio jack, which mates with commonly available earphone
plugs and adapters available at Radio Shack, such as 274-290 (plug) or
274-327 (adapter for 1/8” mono plug). If you prefer to use another size
and style jack, we suggest that you still install the original jack and then
wire your own jack in parallel with it rather than rough up the PC board
to accommodate your jack.
SEMICONDUCTOR REPLACEMENT DATA
U1 SA602 Contact Ramsey Factory
U2 MC3359 (Motorola) ECG860 or SK7731
U3 LM386 (National) available at Radio Shack, other suppliers
Q1 2SC2498 or 2570 ECG10 or SK9139
Q2,3 2N3904 available at Radio Shack, other suppliers
D1 BB405 contact Ramsey Factory
D2 1N4148 available at Radio Shack, other suppliers
Summary of Contents for FR220
Page 8: ...FR 220 8 U2 3359 FR220 BLOCK DIAGRAM U1 SA602 MIXER...
Page 9: ...FR 220 9 FR220 PARTS LAYOUT DIAGRAM...
Page 14: ...FR 220 14...
Page 15: ...FR 220 15...