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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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hi folks,i collected hundreds of EL84 power pentodes and know 95% of their different manufacturers by decoding etched manufacturer codes or recognizing heritage from typical inner construction but i was not yet successfull with this mystery:
the plates have rather wide holes, the mica stages are octagons with a getter pan on top. the bulb is rather fat (~ 21,5 mm diameter) and wears no etched code. my flock is branded as RSD, SIEMENS or STANDARD BRAND etc. but those were defenitely NOT their manufactuerers (RSD and STANDARD were wholesalers only).can you help please?
thank you!N.
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