I had a 32V3 for awhile and it had poor audio especially after being on the air for about 233 min. The scope showed a trapezoid looking wave (clipped with a slope, instead of a nice sign wave, especially on the low freq tones. This, I remembered from school, happens when a XFMR is reaching saturation so I started looking and sure enough it was from the driver XFMR. But it showed real nice for the first couple of min. and then started saturating. Further investigation proved the XFMR was OK but the cathode bias resistor on the driver tube was going down in value and as plate current increased through the driver XFMR it would saturate. Replacement of the cathode resistor solved the trouble.
John, WA5BXO -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of rjbarn Sent: Wednesday, June 08, 2005 1:06 PM To: [email protected] Subject: [AMRadio] Collins 32V-3 Need Repaired In NJ Hi I have a Collins 32V-3 and I get reports that the carrier is fine but the audio is fussy, rough. But people can understand me but not very clear audio. I'm using a non amplified d-104. Is there anyone here in NJ that can repair it? Of course I will pay for repair. My first time on this mailing list. Hope to here from someone. Really looking forward to getting on AM. Must be in NJ for repair. Thanks........Rich KF2GG 973-857-1195 Cedar Grove NJ Essex County. Will travel in NJ to get repaired. :) __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com ______________________________________________________________ AMRadio mailing list Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:[email protected]
