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Old 16th Nov 2017, 2:46 pm   #17
Neil Purling
Nonode
 
Join Date: Jul 2005
Location: Hull, East Yorkshire, UK.
Posts: 2,087
Default Re: Monster Pantry Transmitter

This beast ought to be tested in a screened workshop where output power & frequency can be accurately measured.
You said the o/p frequency was a touch under 4Mhz.
As 80M is or was 3.5-3.8 Mhz.. What frequency is the crystal marked as being?
The Shack is sacred territory to a radio amateur & something like this would have sat brooding on a high shelf. Nobody would have been allowed near it.
It is a very odd method of construction. One would expect a aluminium chassis inside a aluminium case to prevent any RF escaping from any place but the proper output.
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