Bottlehead Forum

Bottlehead Kits => Legacy Kit Products => Paramount => Topic started by: patm on April 30, 2015, 06:13:00 AM

Title: Non soft start Paramount led's not lit
Post by: patm on April 30, 2015, 06:13:00 AM

Hi,

After 4 years of wonderful music, one of my Paramounts has quit working. The tubes are lit but no sound.

Upon inspection, found only one of the four led's lit.
Voltages

9.     195.      12
11.    296.     .1
12.    222.     .03
14.    146.      0
15.    73.        0.2
16 *

As soon as I touched the dmm probe to 16 the other three led's lit and a recheck of the bad points resulted in correct voltage's. I re soldered 16u and 16l. The amp was put back in service and played wonderfully for two days and then failed again.

Did a little poking with a chopstick can find no obvious problems.

This is a standard Paramount (no soft start)

Thanks in advance. This forum ROCKS

Pat McSween

Title: Re: Non soft start Paramount led's not lit
Post by: Doc B. on April 30, 2015, 06:37:30 AM

Have you remeasured voltages since it quit this second time?

Title: Re: Non soft start Paramount led's not lit
Post by: patm on April 30, 2015, 06:45:02 AM

I will do that straight away.

Pat

Title: Re: Non soft start Paramount led's not lit
Post by: patm on April 30, 2015, 06:50:34 AM

Just turned the amp back on and of course because I messed with it before it's going to be fine untill it quits again. (I tried the chopstick trick) so I guess I will put on some music and make it fail and then measure again before it wiggles back into place.

Title: Re: Non soft start Paramount led's not lit
Post by: Doc B. on April 30, 2015, 07:29:24 AM

It does sound like you just have an intermittent connection somewhere. When in doubt, reflow 'em.