Homemade Stand...

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Re: Homemade Stand...

by TC Chris » Sun Jul 23, 2023 5:00 am

try running another source in, in place of the cartridge. See if you can get more undistorted output. If yes, there's always the option of making a little transistor preamp to give more oomph. I recall seeing simple designs online that included a little voltage divider to get the right low voltage for the transistor.

Chris Campbell

Re: Homemade Stand...

by hermitcrab » Sat Jul 22, 2023 1:38 pm

TC Chris wrote: Wed Jul 19, 2023 2:37 am Is the output level equally low on both tuner and phono inputs? If not, could be the cartridge. If equally low, check the amp-section caps and resistors if you haven't already. Check the B+ voltage too.

Chris Campbell
Thanks Chris ... yea , I've checked the supply voltages, resistors , and the tubes all check out fine , except the 6M11 which I can't test .... most of the caps are ceramic and none tested shorted or open ...and going under the assumption that ceramics are long lasting I left them alone , this only has 3 electrolytics which have been replaced... who knows... a coupling cap could be bad in the audio stage ... the output rating for the 50C5 is only 2.7 watts ... so the volume is probably correct... I think this is just a glorified portable set ...

Re: Homemade Stand...

by Firedome » Thu Jul 20, 2023 8:20 pm

Nice job! look like it could be factory!

Re: Homemade Stand...

by TC Chris » Wed Jul 19, 2023 2:37 am

Is the output level equally low on both tuner and phono inputs? If not, could be the cartridge. If equally low, check the amp-section caps and resistors if you haven't already. Check the B+ voltage too.

Chris Campbell

Re: Homemade Stand...

by William » Wed Jul 19, 2023 12:34 am

That is awesome looking, Elton. You should be proud.

Bill

Re: Homemade Stand...

by electra225 » Tue Jul 18, 2023 11:14 pm

Sometimes, subbing 50EH5's for the 50C5's can give you more volume. I made that move with my little Truetone kiddie player and it sure gave it more volume. If you have a couple EH5's laying around, it wouldn't cost anything to try it. ;) :D

Your stand looks great. Maybe better than using metal. :D :D

Homemade Stand...

by hermitcrab » Tue Jul 18, 2023 8:52 pm

This is the ad from the Phonola showing the optional stand...
phonola .jpg
phonola .jpg (237.34 KiB) Viewed 22611 times
here is my feeble attempt
20230718_163508.jpg
was going to try using square tubing ... but my welding skills suck so I used wood... it really is pretty stable ... overall performance of this unit is ... underwhelming ... a fisher price kidde player is about the volume it puts out... those 50C5's are not impressive for outputs...IMO

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