Pinpointer - Minimax-PP II

[Davor]

I guess I'm supposed be impressed because you were certified as a radio technician in the 1990s?

No, just remember that SMDs are not new and not special at all, and despite all through hole are still here and very much in use. And much more flexible for prototypes.

[anz29]

BAV99 - Petrucho says can be replaced by 2 serial connected 1n4148
DMN2075U - I used 2N7000
MMBT4401 - bipolar NPN, BC817 ?

Thanks silverdog,
I found components on DigiKey , but shipping is expensive for small order

[anz29]

pcb

This is my PCB for minimax pinpointer.
I'm missing some components to build it.
Will try again!!

[bklein]

What's with that penny? I haven't come across one like that.

[silverdog]

What's with that penny? I haven't come across one like that.

A 2011 US cent that someone brought back from America recently, added to my targets collection

[bklein]

Huh. My girlfriend just handed me one that she saw and saved.
Looks like a circus token or something.
Ok, back to the thread.
(I'm going to make this coil plus the one I wrote about...)

[silverdog]

apologies for the awful video, I had to use my phone

I hope you get the idea though

http://www.youtube.com/watch?v=zq1JTMJmFjQ

[cristi71]

very nice job! what the type tranistor are you use in oscilator? BC? thx in advance, regards Cristi

[silverdog]

very nice job! what the type tranistor are you use in oscilator? BC? thx in advance, regards Cristi

I used MMBT4401 / MMBT4403

maybe BC807 / BC817 ?

[cristi71]

i find.. its general purpose transistor . in this case can use BC 327 ,BC 328 or smt variant. thx anyway. regards.

[DavidB]

Hey UFO that's a cool tube amp, looks like a classic push pull stereo amp with 6L6's in parallel.

[satdaveuk]

I guess I'm supposed be impressed because you were certified as a radio technician in the 1990s?

Since we are browbeating, I design and build my own amplifiers with technology from the 1930s.

Hells bells. thats got to be the biggest pinpointer ive seen, does it come with sack truck

[anz29]

MPC602 have equivalent through hole??
How can I replace operational?
TL072? LM358? TL082?

[silverdog]

Hi Anz29

I tried to reply to you rmessage but you do not accept pm

"anz29 has chosen not to receive private messages or may not be allowed to receive private messages. Therefore you may not send your message to him/her."

[anz29]

Hi Anz29

I tried to reply to you rmessage but you do not accept pm

"anz29 has chosen not to receive private messages or may not be allowed to receive private messages. Therefore you may not send your message to him/her."

Sorry
Now I have corrected, you can try again to send me a private message?
Thanks