Bottlehead Forum

Bottlehead Kits => Legacy Kit Products => Quickie => Topic started by: underdawg on March 04, 2013, 10:34:12 AM

Title: quickie fails voltage checks manual has issues maybe
Post by: underdawg on March 04, 2013, 10:34:12 AM

My quickie passes all resistance checks.
The voltage checks from manual state the following:
Terminal
1,5  should have 29 vdc I get 38vdc on 1,6
2,6 should have 38 vdc i get 38vdc on 2,7
4,9 2-3 volts i get 2.2 vdc
5,10 0 vdc----see 5 here and above , cant have both
rotary b should have 4v I get 0 vdc------------only measurement that fails
rotary c 4 vdc I get 3.7 vdc , thinking about jumpering c to b to get the voltage on both points, could selector switch be bad?

I have stripped this down twice and rewired with these results being the same. Is it me or the manual?

The A side works with volume control, no distortion, no harmonics, gain is ok not blasting as it may should.

Title: Re: quickie fails voltage checks manual has issues maybe
Post by: Paul Birkeland on March 04, 2013, 07:44:30 PM

There is a typo with the voltage checks, the terminal pairs are

1,6 - ~30V
2, 7 - ~28V
4, 9 - ~2-3V
5, 10 - ~0V

 5 and 10 are connected to the ground buss, which is where you would connect your black meter lead, so seeing 5V here would be very unlikely.

Rotary B should be rotary D.

Title: Re: quickie fails voltage checks manual has issues maybe
Post by: underdawg on March 05, 2013, 04:19:07 AM

got it 5 and 10 are 0 vdc.
I will call today to go through the troubleshooting with Dan again today as we were perplexed yesterday, one channel works fine the other does not.
The checks appear good, both tubes seem to working based on measurements.
Deric

Title: Re: quickie fails voltage checks manual has issues maybe
Post by: underdawg on March 06, 2013, 02:48:28 AM

preamp is now running many thanks to paul and dan.