Search found 7 matches

by Stan
Mon Dec 24, 2007 11:36 am
Forum: Up For Grabs
Topic: Data cassettes for sale
Replies: 0
Views: 1940

Data cassettes for sale

Dumpster diving, does it pay off? I hope I can find a home for these nice data cassettes. 150, 250, and 525 megabytes. The 250's are new, sealed, box of 5, the rest (13 of them) are used. They have a nice thick aluminum baseplate (about 4" x 6") which I will eventually extract if no one buys these. ...
by Stan
Mon Dec 24, 2007 10:35 am
Forum: Up For Grabs
Topic: Model 60/67 Modem and MUX tester
Replies: 0
Views: 1893

Model 60/67 Modem and MUX tester

I put this on eBay but got no bids. Maybe will find a target here. I'm not sure what exactly it does or how to use it. Nice metal case with heavy hinge, worth something for that alone. Power supply included, displays.
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by Stan
Tue Jan 22, 2002 6:45 am
Forum: General Discussion
Topic: Low Vsat transistors ?
Replies: 13
Views: 4703

Re: Low Vsat transistors ?

This is probably not what you have in mind, but if your junk box has germanium transistors, low Vsat is one of their strong points. .1v is typical, and the heavier ones can handle 1 amp. Just keep it cool and watch the Vceo max. Also you have to tolerate some leakage current in "off" state. (in .5 m...
by Stan
Mon Jan 14, 2002 8:15 pm
Forum: General Discussion
Topic: Cordless Phone Linear
Replies: 26
Views: 7439

Re: Cordless Phone Linear

I am a 2-way radio tech and what you want to do is more complicated than you realize. The output module from an analog cellphone could get you to 3 watts (I'm not sure how broad they are, but they are designed for the 800-900 mHz band) but you also have to use a impedance matching network on the inp...
by Stan
Mon Jan 14, 2002 8:03 pm
Forum: General Discussion
Topic: Can you help me find one?
Replies: 5
Views: 2661

Re: Can you help me find one?

I will try that idea about co's that take trade-ins. Any specific suggestions? I tried doing a rewind (on another problem) years ago, but the primary alone discouraged me. Several hundred turns of very fine wire patiently by hand... now that I think about it, I think I succeeded that one time, but I...
by Stan
Thu Jan 10, 2002 1:56 pm
Forum: General Discussion
Topic: Can you help me find one?
Replies: 5
Views: 2661

Re: Can you help me find one?

Thank you for your concern. I am hopeful the xformer smoked itself, but the usual causes after that would be, in order: shorted HV rectifier, shorted HV capacitor, shorted LV rectifier, shorted LV capacitor. I seriously hope it isn't deeper than that, but unless it is in a HF module I could probably...
by Stan
Mon Jan 07, 2002 11:48 am
Forum: General Discussion
Topic: Can you help me find one?
Replies: 5
Views: 2661

Can you help me find one?

I have a service monitor, SSI-3000B. The company has quit supporting it. One day the power transformer let some smoke get out. It apparently needed that but I couldn't put it back in. Can anyone help me find a replacement? If it helps: the part # was 1510-3001, the Wavetek # was 1219 000402. The com...