Pair vintage jan 6c4 tubes square and halo getters avo tested

By ge


£19.68







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Pair used 6c4 tubes, labed JAN. Made in USA. I suspect GE, but don't really know for sure. One is a halo getter, one is square getter. Tested good on my avo mark 4. For reference, the AVO actually applies 250-450 plate volts and tests tubes under power unlike other testers. You can then accurately test for shorts, gas, etc. Well Known that tubes can warp and deform when hot/under full voltage...AVO's will pick this up where others will not. Reference for new 6c4 per avo manual is IA/MA =  10.5, and Ma/V is 2.2. Tubes tested at:

tube 1

Ia/Ma= 8

mA/V= 2

tube 2

Ia/Ma= 12.2

mA/V= 2.5

No shorts, gas, insulation issues, or runaway draw.  No boxes....

Ask questions before bidding as sales are final and as is. I expect winner to contact me within 24 hours and have payment here in 7 days,,,,,do not bid if you don't intend to follow through.  I pack well and ship promptly.  I do ship international, but buyer pays duties and fees.  I don't lie on customs forms. Continental us estimated...Hawaii and Alaska are more, please ask.



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