Paramount 300B Construction Problems

[docbob52]

Frustration here and any help appreciated.  All my resistance checks were spot on, but the first part of my voltage checks were way off and I don't understand the discrepancy.  For example:  Terminal 6 measures 75 volts and it is supposed to be 0.  Terminal 10 is supposed to be 233v and it measures 0.  Terminal 11 measures 231v and supposed to be 184. Terminal 12 measures 162v and is supposed to be 0.

After this I stopped measuring live voltages and am dissecting my construction which made much more difficult by the inversion of the terminals on the OTL-1 tranny that I was shipped.

All help appreciated.

 

[SpenceD]

Hi docbob.  My Paramount measures the same as yours and works fine.  I think there is a mistake in the instructions.

Spence

 

[Demsy]

For terminal no. 10, 11 and 12 it is a typo. Indeed 10 should measure 0v, as I think it is ground, 11=233v and 12 =164v. I wrote Dan after finishing my Paramounts about that, but apparently not rectified, yet. But I am not sure about terminal no. 6's voltage. I will measure it once I'm home. But Spence wrote that his is good with those numbers.

 

[docbob52]

Thanks guys--this is great news.  Does anyone have the corrected complete voltage test values for the Paramount 300B?  This does need to be published for obvious reasons.

This Forum is a great resource and adds much value to the Bottlehead phenom and DYI culture. Thanks again Doc.