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  • Retro 75 Helper (VFO)

    Anyone here got an unbuilt VFO "Retro Helper" they would like to sell ? Rick KC8AON

    kc8aon 4 days ago
  • Re: Anyone got a Retro 75 for sale ?

    * here is an earlier post with my Retro 75 * K9DVL Dave * * SWLRetro75 The first

    k9dvl 6 days ago
  • Re: Anyone got a Retro 75 for sale ?

    Glad you got a Retro 75.  I have had mine for a long time and made many contacts with it.  Has anyone successfully recreated the VFO add-on?  Of course they

    jackw9gt 6 days ago
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Group Description

Friendly self help group for builders of the Retro 75 AM Transceiver kit launched by Dave Benson K1SWL of Small Wonder Lab in March 2010

- Board size 3.5” x 5.27”
- Tunable 80/75M AM Receiver- 50 kHz, selectable, varicap-tuned
- 4 kHz receiver IF crystal filter at 6 MHz
- Room-filling speaker volume from LM386
- Crystal-controlled Transmit- 3885 kHz supplied
- Board pads for 2nd crystal frequency, remotely switchable
- Transmitter output power: 2.5W carrier/ 8W peak
- Transmit and Receive ALCs
- Uses readily-available and inexpensive dynamic mics
- Built-in Alignment function

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