HT-40

[Glen Zook]

Check the microphone cord shield.  Also, the
microphone or audio stages could be picking up r.f. 
Check your ground on the transmitter.

Glen, K9STH


--- "Alan W. Fremmer" <AWFremmer at AOL.COM> wrote:

Time to consult the experts.  Have been having
problems with hum on  the carrier of the HT-40. 
Replaced all four electrolytic capacitors and  that
seems to have eliminated the hum when the transmitter
is in the TUNE  mode.  However, when switched to AM
there is still a residual buzz. On CW, the note sounds
clean.  All tubes were checked and the weak ones
replaced.  Any suggestions as to where to look next.

=====
Glen, K9STH

Web sites

http://home.comcast.net/~k9sth
http://home.comcast.net/~zcomco


		
__________________________________ 
Do you Yahoo!? 
Yahoo! Mail - 250MB free storage. Do more. Manage less. 
http://info.mail.yahoo.com/mail_250

-----------------------------------------------------------
This list is a public service of the City of Tempe, Arizona
-----------------------------------------------------------

Subscription control - http://www.tempe.gov/lists/control.asp?list=BOATANCHORS
To post - BOATANCHORS at LISTSERV.TEMPE.GOV
Archives - http://listserv.tempe.gov/archives/BOATANCHORS.html