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GC511K PNP + GC521K NPN TUNGSRAM MATCHED PAIR GERMANIUM TRANSISTORS 0.3W 1A
Description
PLEASE, READ CAREFULLY EVERYTHING. IT IS IMPORTANT.About item: GC511K+GC521K, MATCHED PAIR, TUNGSRAM, GERMANIUM, TRANSISTORS.
The 'K' designates the heatsink on the transistor.
These are not in their original package but never been used.
We have these hand tested pairs in stock.
Measured with semiconductor tester LCR-T4-H L/C/R/ESR.
Measured values (hFE):
1.
2. GC511K (hFE=80) + GC521K (hFE=79)
3. GC511K (hFE=85) + GC521K (hFE=85)
Firsthand experiences
Comments from forums and Reddit
Discussed in Any DIY pedal builders on TB? Strut your stuff! in the TalkBass community
whoismarykelly
The NTE germaniums are fine but not anything special. I built one of those boards a couple years ago and split out the gain control into separate pots for the rangemaster boost and the muff gain. In that configuration you want low/medium gain transistors and really any npn Ge and pnp Ge will do. If you're looking for one-stop ... ... more
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