Help for old homebrew ?1930s
 

Hi,
I have just acquired an old home brew radio. It is a 5 tube
regenerative receiver. The tubes as best I can make out are
Cossor 215P BVA, Mullard PM1HLx2, Mullard PM2DX and a Mullard 2M1HF.

Does this ring a bell with anyone. Does anyone have or can point me to
Schematic.

Many thanks
Ian