Showing posts with label Polyakov--Vladimir. Show all posts
Showing posts with label Polyakov--Vladimir. Show all posts
Thursday, August 11, 2022

What Coil for the Polyakov Input Circuit? How to calculate a coil value for resonance.

›
So,  what is the value for L1 and L2?   What coil should I use?   Michael AG5VG had that question.  And so did I when I built this receiver....
7 comments:
Wednesday, August 10, 2022

Vasily Ivanenko on Vladimir Polyakov's Subharmonic Detector

›
Our old friend "Vasily" sent in a very insightful comment about the Polyakov receiver.   It was so good that it merits a blog post...
Tuesday, August 9, 2022

Polyakov Direct Conversion Receiver on 80 Meters (video)

›
In today's episode I put the switch in the open position turning the receiver into an ordinary Direct Conversion receiver with a single ...
Monday, August 8, 2022

Polyakov (RA3AAE) Direct Conversion Receiver: 40 meter DC RX with VFO at 3.5 - 3.6 MHz (with video)

›
I've been reading about Polyakov (or "sub-harmonic") Detectors for a long time:  https://soldersmoke.blogspot.com/search/label...
4 comments:
Saturday, February 6, 2021

Some Thoughts on Singly Balanced Mixers with Two Diodes and One Transformer

›
In 2001, out it in the Azores, I built a 17 meter version of Doug DeMaw's Double Sideband transmitter ("Go QRP with Double Sideband...
2 comments:
Tuesday, February 16, 2016

A Phasing Receiver from Montenegro (Video)

›
Thanks to Peter Parker VK3YE for alerting us to this beautiful receiver from Bore 4O6Z in Montenegro.  This may be our first ever report o...
Friday, July 22, 2011

Steve "Snort Rosin" Smith: Silver-Tongued Devil! Dual-band "Vlad the Inhaler" RX

›
You'll see in the comments attached to my last blog post that our man on the left coast, Steve Smith, gave that cute little Doug DeMaw/V...
Wednesday, July 20, 2011

Doug Demaw and Vlad Polyakov

›
I was looking through W1FB's Design Notebook the other day and I came across the above schematic for a direct conversion receiver (page...
2 comments:
Wednesday, April 20, 2011

SolderSmoke Podcast #133

›
http://soldersmoke.com/soldersmoke133.mp3 April 19, 2011 -- KindleSmoke -- Amazon's Whispernet (not to be confused with WSPRnet) -- Apri...
3 comments:
Monday, April 4, 2011

The Polyakov QRSS Receiver

›
Of course, we like it because it is in an Altoid-like box. And because it is Direct Conversion. And because it is used for QRSS, with the ...
1 comment:
Tuesday, March 30, 2010

AA1TJ on Polyakov, Scrounging Parts from a Wehrmacht Tank, QRPp Success

›
Caro Bill, FB on your 20mW DSB WSPR DX! I've never actually been on the air during the upside of a solar cycle. This is wicked excitin...
1 comment:
Saturday, March 27, 2010

Polyakov Plus! Dual-band Receiver with Subharmonic Mixer

›
I found it! SPRAT 110, Spring 2002, page 5. A short article by OM Rudi Burse, DK2RS. This is the variation on the Polyakov ...
6 comments:
Thursday, March 25, 2010

Polyakov's Russian Mixer

›
I'm planning on building a DC receiver for use with the WSPR system. I will probably follow W3PM's lead and put a crystal filter be...
8 comments: