NEW ONE...
DB-350 (TLA-350)


using 3 x GU-50 tubes ,grounded grids schematic and power : 300-400 Watts


NEW ONE...
DB-600  


using 2 x GU-72 tubes ,grounded kathode schematic and power : 400-600 Watts(P.E.P.)


EA2ENG


DB-600 

using 2 x GU-72 tubes ,grounded kathode schematic and power : 400-600 Watts(P.E.P.)


More for STEP by STEP

 DB-600

Starting a new one project with GU-72 tubes...

That is first test of programm and display...