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Audio and Video Talk
Valves / Vacuum Tubes
Radford STA 12 Restoration
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<blockquote data-quote="charles" data-source="post: 649049" data-attributes="member: 2759"><p>BK, thank you very much.</p><p></p><p>One day you will find a Radford STA 25 OPT. All the best.</p><p></p><p>Regarding the STA12:</p><p></p><p>Found and fitted two knobs for the impedance switches.</p><p></p><p>Changed the two metal can electrolytic capacitors in the middle of the chassis with a proper double one.</p><p></p><p>Used a variac to ramp the voltage slowly up in order to reform the electrolytic capacitors. This took me a couple of hours.</p><p></p><p>I will post some photos. </p><p> </p></blockquote><p></p>
[QUOTE="charles, post: 649049, member: 2759"] BK, thank you very much. One day you will find a Radford STA 25 OPT. All the best. Regarding the STA12: Found and fitted two knobs for the impedance switches. Changed the two metal can electrolytic capacitors in the middle of the chassis with a proper double one. Used a variac to ramp the voltage slowly up in order to reform the electrolytic capacitors. This took me a couple of hours. I will post some photos. [/QUOTE]
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Audio and Video Talk
Valves / Vacuum Tubes
Radford STA 12 Restoration
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