tag:blogger.com,1999:blog-7361237673474611033.post1744969220198901163..comments2024-03-25T09:10:23.746+00:00Comments on Doz' Blog: Sam's Bush VHF90Dozhttp://www.blogger.com/profile/01517789746939070858noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-7361237673474611033.post-4271359365451550322017-02-20T17:30:47.064+00:002017-02-20T17:30:47.064+00:00Fascinating Mr D! I thoroughly enjoyed your lates...Fascinating Mr D! I thoroughly enjoyed your latest presentation, these are a treat as I seldom get a chance myself these days working at the sanatorium... ;-)<br />Your comments about your "leaky" switch remind me of a multi phono-plug panel I purchased from a certain emporium in Cheltenham. I think it was six pairs of phono sockets on what appeared to be paxolin. (similar to this. http://static-8.yourspares.co.uk/media/p/ev/f_jpegs/l/F262D.jpg). Anyway, the preamplifier had a most horrendous hum, I could not find the cause and as always blamed my design, layout and construction, components everything except... that damned phono socket panel. Ater two days of nearly going mad I removed the PS and PCB from the case, this necessitated removing the sockets. Trying it out on the bench unscreened with the wires all over the place NO HUM! A tacky looking one from the big electronics emporium once fitted worked like a dream and is to this day. Who would have thought it? Andy Goloskofhttps://www.blogger.com/profile/17417332532286529329noreply@blogger.com