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Audio and Video Talk
Valves / Vacuum Tubes
Anyone seen one of these? (Vintage naked pics)
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<blockquote data-quote="afroaudio" data-source="post: 542979" data-attributes="member: 15197"><p>Well.. found some time and managed to get this working, with a little help from a friend <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p></p><p>Turns out the on off switch was toast and other than that replacing one of the small wax caps 100pF? across the input potentiometer and things were working! I took the unit back home and swapped out all the Electrolytic caps and the green resistors. Not As pretty and neat as it used to be but those caps were ancient and I dont trust them.. also some of the green carbon comps had drifted quite far off.</p><p></p><p>One question for Ampdog and others profiecient at this stuff.. I replaced one can cap (2 x 16uF 350V) with 2 separate 22uF 350V caps and the other can (1 x 32uF 350V) with a 47uF 350V cap... are these values ok? They are all I had on hand.</p><p></p><p><a href="https://flic.kr/p/rcA2vk" target="_blank"><img src="https://farm9.staticflickr.com/8609/16540039529_87b7839c19_c.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a><a href="https://flic.kr/p/rcA2vk" target="_blank">Minuet</a> by <a href="https://www.flickr.com/people/111114546@N05/" target="_blank">bregtje_lush</a>, on Flickr</p></blockquote><p></p>
[QUOTE="afroaudio, post: 542979, member: 15197"] Well.. found some time and managed to get this working, with a little help from a friend :) Turns out the on off switch was toast and other than that replacing one of the small wax caps 100pF? across the input potentiometer and things were working! I took the unit back home and swapped out all the Electrolytic caps and the green resistors. Not As pretty and neat as it used to be but those caps were ancient and I dont trust them.. also some of the green carbon comps had drifted quite far off. One question for Ampdog and others profiecient at this stuff.. I replaced one can cap (2 x 16uF 350V) with 2 separate 22uF 350V caps and the other can (1 x 32uF 350V) with a 47uF 350V cap... are these values ok? They are all I had on hand. [url=https://flic.kr/p/rcA2vk][IMG]https://farm9.staticflickr.com/8609/16540039529_87b7839c19_c.jpg[/IMG][/url][url=https://flic.kr/p/rcA2vk]Minuet[/url] by [url=https://www.flickr.com/people/111114546@N05/]bregtje_lush[/url], on Flickr [/QUOTE]
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Audio and Video Talk
Valves / Vacuum Tubes
Anyone seen one of these? (Vintage naked pics)
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