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Merola and Mershon
11/4/2002 4:30:16 PMKA
Crosley model 706, schem makes reference to a "Mershon condenser"
and what appears to be an input or an output to "Merola"
Anyone familiar with these terms.
11/5/2002 11:41:11 AMJohn McPherson
Hi,
Mershon was just a manufacturer of capacitors, the schematic indicates it as a 2 section filter capacitor. I removed one from a radio to display because it looked impressive, and there was no way I could have rebuilt this one.

Merola is probably an early speaker supplied to Crosley, or was the output transformer manufacturer. Rider only indicates "output" and "output transformer".


:Crosley model 706, schem makes reference to a "Mershon condenser"
:and what appears to be an input or an output to "Merola"
:Anyone familiar with these terms.

11/5/2002 1:17:49 PMKA
Thanks for the info.
From the configuration, it looks like the original
value of the caps might be 1 or 2 mfd @ 350v or so.
Sound about right?

:Hi,
:Mershon was just a manufacturer of capacitors, the schematic indicates it as a 2 section filter capacitor. I removed one from a radio to display because it looked impressive, and there was no way I could have rebuilt this one.
:
:Merola is probably an early speaker supplied to Crosley, or was the output transformer manufacturer. Rider only indicates "output" and "output transformer".
:
:
::Crosley model 706, schem makes reference to a "Mershon condenser"
::and what appears to be an input or an output to "Merola"
::Anyone familiar with these terms.

11/6/2002 9:13:20 AMJohn McPherson
Hi,
Yes. The one I have for display at this point is a 2 Mfd @ 450 V. The new electrolytic I replaced that one with was miniscule by compairison, but much more effiecient in design and materials.

A 1mfd @ 450 volt electrolytic for each section should be adequate, but if the audio is lacking after the swap, I would increase the total capacity to 2mfd. The efficiencies of the new style caps more than make up for the losses encountered in the old caps- even when they were new.
Digi-key carries them, and they are inexpensive in bulk www.digikey.com

:Thanks for the info.
:From the configuration, it looks like the original
:value of the caps might be 1 or 2 mfd @ 350v or so.
:Sound about right?
:
::Hi,
::Mershon was just a manufacturer of capacitors, the schematic indicates it as a 2 section filter capacitor. I removed one from a radio to display because it looked impressive, and there was no way I could have rebuilt this one.
::
::Merola is probably an early speaker supplied to Crosley, or was the output transformer manufacturer. Rider only indicates "output" and "output transformer".
::
::
:::Crosley model 706, schem makes reference to a "Mershon condenser"
:::and what appears to be an input or an output to "Merola"
:::Anyone familiar with these terms.



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