UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Chinese 1A2 Super Regenerative FM radio kit

VT FUSE · 30th Dec 2018, 5:39 pm

Well done on a tough project.

As an early doubter that the (1939 origin 1R5) clone, 1A2 freq changer may function at fm broadcast freq's,it may be timely for me to head off and stew a hat to eat at my leisure!
I guess, but cannot remember, that the 1A2 must be pentode strapped here?

With the dogged perseverance displayed it can only be a short time until at least one of the four 25kW fm transmissions from Redruth's Four Lanes transmitter is monitored clearly,in fact the whole board is probably overloaded due to high field strengths and possibly moving a little further distant when testing may prove this?

Doubtful if the weak re-radiated oscillation would trouble anybody in such a strong signal field.

Mike

30th Dec 2018, 5:39 pm	#72
VT FUSE Hexode Join Date: Aug 2010 Location: Malvern, Worcestershire, UK. Posts: 347	Re: Chinese 1A2 Super Regenerative FM radio kit Well done on a tough project. As an early doubter that the (1939 origin 1R5) clone, 1A2 freq changer may function at fm broadcast freq's,it may be timely for me to head off and stew a hat to eat at my leisure! I guess, but cannot remember, that the 1A2 must be pentode strapped here? With the dogged perseverance displayed it can only be a short time until at least one of the four 25kW fm transmissions from Redruth's Four Lanes transmitter is monitored clearly,in fact the whole board is probably overloaded due to high field strengths and possibly moving a little further distant when testing may prove this? Doubtful if the weak re-radiated oscillation would trouble anybody in such a strong signal field. Mike