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One D3a 7721 ( 7721) Tube, By Siemens For GE, Special Pre-Amp Tubes
One D3a 7721 ( 7721) Tube, By Siemens For GE, Special Pre-Amp Tubes One D3a 7721 ( 7721) Tube, By Siemens For GE, Special Pre-Amp Tubes

One D3a 7721 ( 7721) Tube, By Siemens For GE, Special Pre-Amp Tubes

USD 239.00 USD
SKU: 26GKn41z
Brand: Siemens
Condition: Used
Tags: D3a D3a7721 Germany Siemens Tubes
Categories: Vintage Electronics

Specifications

Country Of OriginGermany
BrandSiemens
TypeTubes
Product TypeTubes
ModelD3a7721

Special pre-amp tubes with high Mu, long life and ultra-linearity. They look like sparingly used. I cannot them on my tube tester.

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