I'd remove the resistors and use wire.
2K is not a short!
2K is not a short!
Help with S.E.X 2.1
- Thread starter Marcin
- Start date
I was reading online that the direct short can have a negative impact on the amp. I can try with the direct short if that's what is recommended. I'm also able to get continuity between the safety ground connection and mentioned front screws, or any other screws. As for the hum, Left: 05.2mV, Right: 15.4mV measured at the speaker leads with the 2K RCA plugs in place.
I see your problem, you received a PT-3 power transformer instead of a PT-7.
The good news is, you can retain the PT-3 and get your amp working properly quite easily.
1. Clip out the black wire that goes from the 5-lug terminal strip where you have your 220uF capacitors to the power transformer.
2. Wire Terminals 6 and 9 together on the power transformer.
3. Wire terminals 7 and 10 together on the power transformer.
4. Jumper C1/C3 together with a piece of wire.
If you're not interested in this route, a replacement power transformer can be mailed out tomorrow.
-PB
The good news is, you can retain the PT-3 and get your amp working properly quite easily.
1. Clip out the black wire that goes from the 5-lug terminal strip where you have your 220uF capacitors to the power transformer.
2. Wire Terminals 6 and 9 together on the power transformer.
3. Wire terminals 7 and 10 together on the power transformer.
4. Jumper C1/C3 together with a piece of wire.
If you're not interested in this route, a replacement power transformer can be mailed out tomorrow.
-PB
Marcin said:
The resistor is needed if you are loading an output, not an input. At the input you want a dead short. There is already a resistor across the input in the form of the volume pot. In theory turning the pot to the lowest setting shorts the input. But if it is not set up right and picking up noise because of it using a shorting jack will help to isolate the problem.