Since I sold my tube amps, I no longer need my spare tubes.
This ad is about new in boxes General Electric 6550A tubes.-GE 6550A (Four) NOS and NIB - $500 Pick-up is welcome or I can send them at the buyer's expense. I will accept cash, personal check, money order, and PayPal friends and family. See my other ads. There are brand-new ones and very few used ones for sale. Thank you,
Aleks
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