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

VT FUSE · 30th Dec 2018, 7:20 pm

Hi Symon

My trusty Type G RAF cloth flying helmet has been selected for the slow cooker.

Wiki states: Redruth Four Lanes Transmitter site has the following high power senders (Arqiva) R2 89.7 mHz , R3 91.9mHz , R4 94.1mHz & R1 99.3mHz.
These are quoted as 25kW but goodness knows what the EIRP from these would be in reality? the field strengths from all of these freq's falling within a 10mHz width would challenge a Superregen Rx configuration,not known for any resemblance of selectivity but high in sensitivity.

Without back reading the posts,I am sure the 1A2 was pentode wired.

A write up would be of interest once you have endowed it with a life as we know it-relative to radio listening.

A quantitative AVO test of the 1A2 Vs DK91 would be interesting.

ps. Just read back to post no.33 and it seems that I (luckily) did not suggest that my hat would be eaten if/when proven wrong!

Regards

Mike

30th Dec 2018, 7:20 pm	#74
VT FUSE Hexode Join Date: Aug 2010 Location: Malvern, Worcestershire, UK. Posts: 347	Re: Chinese 1A2 Super Regenerative FM radio kit Hi Symon My trusty Type G RAF cloth flying helmet has been selected for the slow cooker. Wiki states: Redruth Four Lanes Transmitter site has the following high power senders (Arqiva) R2 89.7 mHz , R3 91.9mHz , R4 94.1mHz & R1 99.3mHz. These are quoted as 25kW but goodness knows what the EIRP from these would be in reality? the field strengths from all of these freq's falling within a 10mHz width would challenge a Superregen Rx configuration,not known for any resemblance of selectivity but high in sensitivity. Without back reading the posts,I am sure the 1A2 was pentode wired. A write up would be of interest once you have endowed it with a life as we know it-relative to radio listening. A quantitative AVO test of the 1A2 Vs DK91 would be interesting. ps. Just read back to post no.33 and it seems that I (luckily) did not suggest that my hat would be eaten if/when proven wrong! Regards Mike Last edited by VT FUSE; 30th Dec 2018 at 7:37 pm. Reason: addition-ps.