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Registered Member #1498
Joined: Thu May 22 2008, 07:08AM
Location: Hong Kong
Posts: 72
I wanna make a simple crystal radio.The circuit needs a 2AP9 diode as a demodulator. However,I couldn't find this diode in many electronics stores.Could anyone tell me any replacement?I want some common type such as 1Nseries.
Registered Member #543
Joined: Tue Feb 20 2007, 04:26PM
Location: UK
Posts: 4992
Send me your address in a private message, lad, and I'll send you a few each of some different germanium diodes (which work very much better than silicon diodes in crystal receivers). And I'll include a few different circuits and tips for you to try out with them,
Think of it as a good will package from Merry England!
Registered Member #543
Joined: Tue Feb 20 2007, 04:26PM
Location: UK
Posts: 4992
Thanks for your PM, son. I'll put a few OA47 and IN34A in a letter to you on Monday. You will receive them in HK within 10 days.
Cost: Please write the best account of your experiment that you can, including your own schematic diagram, and experimental results, and post them here. Please no click links to someone else's work. Your own experiments with the crystal receiver are all I want to see for my trouble
Registered Member #1498
Joined: Thu May 22 2008, 07:08AM
Location: Hong Kong
Posts: 72
no problem!I'll post them here.But I'm still winding the inductor and I'm finding a variable capcitor which has high capacitance(~350pF).So please wait a few days.
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Replacement for 2AP9
8888