hi,
I've been working on a 1954 radiogram chassis simplifying it by removing the radio components and replacing faulty parts to use as a mono PU amplifier.
there is a schematic for it, but am having trouble following the switching diagram.
V1, V3, and V8 tubes are removed and only half of the ech81 (V2) is used
I have been marking out the schematic the parts of the circuit to keep intact though are unsure about a few area's. i'm not sure about what components to leave and the wiring between V2 and V4.
also i'm not sure if T1 and T2 need to be connected for it to work as a PU amplifier?
any help would be great if anyone is familiar with these designs and switch schematics from the mid 1950's
ps. V6 is in use, the wiring is ment to be colored orange too.
thanks
I've been working on a 1954 radiogram chassis simplifying it by removing the radio components and replacing faulty parts to use as a mono PU amplifier.
there is a schematic for it, but am having trouble following the switching diagram.
V1, V3, and V8 tubes are removed and only half of the ech81 (V2) is used
I have been marking out the schematic the parts of the circuit to keep intact though are unsure about a few area's. i'm not sure about what components to leave and the wiring between V2 and V4.
also i'm not sure if T1 and T2 need to be connected for it to work as a PU amplifier?
any help would be great if anyone is familiar with these designs and switch schematics from the mid 1950's
ps. V6 is in use, the wiring is ment to be colored orange too.
thanks
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