one side of Quickie not working [solved]

aragorn723 · 2418

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Offline aragorn723

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on: December 25, 2013, 02:09:20 PM
Hi,

I was listening to my Quickie tonight, and one side stopped working.  I swapped tubes (left and right) and still have a channel out.  Here are my voltage readings:

IA/IB 26.7 V / 26.7 V
A6 / B6 26.7 V /26.7 V
A5 / B5 200 mv / 200 mv (not sure about whether these are good measurements ; out of circuit the D cells measured 0.9V and 0.85V.  Are the D batteries dead??

Dave
« Last Edit: December 26, 2013, 07:14:00 PM by Caucasian Blackplate »



Offline Natural Sound

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Reply #1 on: December 25, 2013, 02:56:51 PM
Yup, it's time for a fresh set of batteries, all 6 of them.



Offline aragorn723

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Reply #2 on: December 25, 2013, 03:43:54 PM
What would happen if I just changed the D batteries?  The funny thing too is that if I turn the preamp on, the tube plays for a minute or two, then stops.. Does that still sound like batteries?  Thanks,

Dave



Offline Paul Birkeland

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Reply #3 on: December 25, 2013, 03:45:43 PM
That is almost certainly batteries.

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man


Offline Zimmer64

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Reply #4 on: December 26, 2013, 06:25:21 AM
When the D cells go below 1v, the Q stops working. Change the 9v batteries once they fall below 24 volts.

Michael

Nelson Pass F5 Turbo V2, Quickie (mod), S.E.X. 2.1, Tubes4hifi SP14, Dynaco VTA ST 70, Tubelab SSE, Vroemen Diva Superiore ER4, Jordan JX92S VTL, 47 labs 0647 CD, Aqvox DAC, Rowen Absolute pre / psu / power amps, BG Neo3 / Betsy / Eminence A15 open baffles


Offline aragorn723

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Reply #5 on: December 26, 2013, 08:59:54 AM
When the D cells go below 1v, the Q stops working. Change the 9v batteries once they fall below 24 volts.

Michael

Thanks, that did it :)