Bottlehead Forum

Bottlehead Kits => Legacy Kit Products => Stereomour => Topic started by: Flyin_V on July 04, 2014, 09:03:43 PM

Title: A1/C1 voltges (Solved)
Post by: Flyin_V on July 04, 2014, 09:03:43 PM

Just rechecked to voltages in the amp and A1/C1 and A4/C4 are 2.1 VAC. Is this too low?

Thanks.

Lary

Title: Re: A1/C1 voltges
Post by: Paul Birkeland on July 05, 2014, 07:52:01 AM

There's a very good chance that your meter has a tough time reading voltages that low.  What's your incoming line voltage?  What's your A1/A4 and C1/C4 DC voltage to ground?

Title: Re: A1/C1 voltges
Post by: Flyin_V on July 05, 2014, 05:25:23 PM

There's 122 VAC from the wall, A1/A4 have 130 VAC and C1/C4 have 131 VAC to ground.

Lary

Title: Re: A1/C1 voltges
Post by: Flyin_V on July 06, 2014, 07:41:35 AM

DC to ground is 60 V +/-  .3 V.

Lary

Title: Re: A1/C1 voltges
Post by: Paul Birkeland on July 06, 2014, 02:20:25 PM

Quote from: Flyin_V on July 06, 2014, 07:41:35 AM

DC to ground is 60 V +/-  .3 V.

This is enough to say that your meter has a tough time reading low AC voltages.  With 2V AC on the 2A3 filaments, I would expect that DC voltage to be below 50.

-PB

Title: Re: A1/C1 voltges
Post by: Flyin_V on July 06, 2014, 05:30:00 PM

Thanks Paul.

Lary