EH Scott Radio Enthusiasts

The Fine Things are Always Hand Made

Robert Feenstra's Discussions (174)

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Discussions Replied To (167) Replies Latest Activity

"Troy, on the negative voltage divider, I've had to play with the resistances to get…"

Robert Feenstra replied Mar 11 to Low voltage in Philharmonic power supply

 14 Mar 11
Reply by David C. Poland

"Troy, I too used to play with player pianos.  Have an Ampico A and B and Steinway Du…"

Robert Feenstra replied Feb 24 to SCOTT NAPIER ALLWAVE 12

 67 Feb 27
Reply by Thomas Day

"As I recall, I changed the caps in the tub with X1Y2 caps.  After a lot of testing,…"

Robert Feenstra replied Feb 19 to Restoring My Scott SLRM

 14 Feb 25
Reply by Michael Lawton

"Done!  I wrapped a wire around the plate pin.  Interesting, I read 225 volts with sc…"

Robert Feenstra replied Feb 7 to Philly BOL restoration problems

 29 Mar 5
Reply by David C. Poland

"The grid on my BOL 6J7 is very sensitive. A finger on it produces very loud hum/buzz…"

Robert Feenstra replied Feb 6 to Philly BOL restoration problems

 29 Mar 5
Reply by David C. Poland

"The bias for the sJ7 is supplied from the -27 supply when the Scratch is off.  I mea…"

Robert Feenstra replied Feb 6 to Philly BOL restoration problems

 29 Mar 5
Reply by David C. Poland

"+1 on Michael.  If the tube is near cutoff, the plate voltage will be high."

Robert Feenstra replied Feb 5 to Philly BOL restoration problems

 29 Mar 5
Reply by David C. Poland

"Hmmm. trusting grounds through rivets and  star washers seems a bit dubious. On  the…"

Robert Feenstra replied Jan 31 to AW23 osc issue

 9 Feb 1
Reply by Kent King

"I have a Philly in that cabinet and the chassis does stick out the back by about an…"

Robert Feenstra replied Jan 14 to Will a Welllington cabinet fit a FM Philharmonic?

 20 Feb 9
Reply by Karl Sherwin

"Scott, I'll send you a couple for the Philly schematics you sent me!"

Robert Feenstra replied Jan 7 to Toggle switches for Scott consoles

 9 Jan 8
Reply by Brad Winder

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