Been to a few radio rallies and at the CDARC surplus sale on the 13 February I recently bought a Heathkit GD-1U Grid Dip Oscillator complete with the original coils, a bargain at £10.
Thanks to Andy (G6OHM) for sending me the link to the service manual and David (M0ZEB) for the Assembly and User Guide.
GD-1U-GPO Assembly and User Guide (7.3Mb File).
GD-1A-GDO Assembly & User Guide.
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Hi there.
I too have just bought one of these GDOs. I would appreciate a copy of the service manual please.
Thanks
John (New Zealand)
Hi John,
I’m in the process of tracking down the Assemby & User Guide, however, I have placed a link on the page for the schematic, the guide link will follow when I have it.
All the best
David M0ZEB sent me a link to the required download which I have uploaded on my page.
Enjoy 🙂
Best 73