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You gave me some good topics to google and learn about. Aug 9, A team of physicists from the Hebrew University of Jerusalem in Israel have developed a single photon source that is not only compact, but also operates at ambient temperatures.

Included in this section are typesE. Looking at the data sheet it says hfe is minimum Not a lot higher, but at least in spec. Thanks for getting back to me so quick. I’ve bought two lots of Russian Trandistor transistors and both have been on the extreme low end of specs. I was looking for an equivilent to AC transistors. Aug 9, 5.

ac germanium pnp transistor | All About Circuits

Picking transistors for FF Clones. R e ctifiers section.

Message 8 of Maybe, if you live near a mainframe junkyard. Turn board power switch to ON. With a DMM using a different current?



Yes, my password is: That seller names rings a bell though, but i can’t be sure. Submit a new text post.

My GTV transistors read vastly different though, which isn’t surprising given that the spec hFE of is datahseet 10mA emitter current whereas the geofex circuit feeds about 20 times less than that. There isn’t really a practical way to purchase GE transistors in bulk if you are a DIY enthusiast or small business.

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Message 6 of Then I have to figure out what measured gain is the one that matters. Aug 8, 2. Submit a new link. I’m working on a guitar pedal that calls for a ac germanium pnp transistor and I was wondering why I might not want to just get a modern equivalent.

Aug 9, 7.

Aug 9, 8. If their account is deleted they probably had shitty feedback and just started a new one. ACOC, 2N You can also go to ebay and search for “transistor tester” and there are a bunch of devices where you can just plug the transistor in and it’ll tell you gain and leakage and which leads are base, collector, or emitter.

I sold it a long time ago and never finished the second one so this video is all I have at the moment. I can’t believe it!! That’s what I thought but I wanted to be sure.

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The rumours I’ve heard is that some resellers purchase a big bulk collection, sort all the best transistors out maybe 1 in 10 if thatthen sell the leftover dreck to the next sucker.

AC Datasheet pdf – Germanium Small Signal Transistors – GPD Optoelectronic Devices

We should start a FAQ to collect all this info in one place. Unless specs are clearly stated, you’re taking a gamble. High gain low leakage low noise germanium transistors are practically unicorns now. Info about building and modding: As you can see, transistor gain gets pretty complicated sometimes, at ax128 to me.

Message 5 of Aug 8, 1. Ifstate of the electronics art datasheer many of the transistor parameters to be designed for various types. Nov 30, 18, 9, Does anyone know the likelihood of getting a bad one if it’s untested or what value is sensible for the hfe, or the effect of different hfe values with regard to a Fuzz effect pedal?