|
Homebrew Equipment A place to show, design and discuss the weird and wonderful electronic creations from the hands of individual members. |
|
Thread Tools |
30th Jan 2023, 1:10 pm | #1 |
Octode
Join Date: Jul 2009
Location: Carmel, Llannerchymedd, Anglesey, UK.
Posts: 1,507
|
TRF regenerative receiver
In an idle moment, I decided to go back to my roots and build a 3-valveTRF regen. receiver, mainly from bits lying around. The tuning drive may be recognised as coming from a defunct Yaesu tranceiver. The regeneration is via a cathode tap on the detector tuning coil. As the tetrode OP bottle did not have the same gain as the pentode I recalled from early days, I cheated a bit by including a transistor to make up the necessary gain.
Quite pleased with the results, particularly after dark when MW opens up! |