Reference

Useful sources of reference material.  Mostly from other web sites, but some stuff I've gathered myself.

Valves


Vintage transformers

Output

 MakeModel Primaries Secondaries Application 
 Colne 03077  5k  Mullard three-three. Single ended EL84. 
 Elden 1264 5k  ditto
 Elstone OT/3 5k  ditto
 Gardners AS.7003 5k  ditto
 Gilson W.O.767 5k  ditto
 Hinchley 1379 5k  ditto
 Parmeko P2461 5k   ditto
 Partridge P4073 5k   ditto
 Wynall W1452 5k  ditto
 Colne03096  6k ct  Mullard five-ten. Low loading push-pull EL84.
 Elstone    ditto
 Gilson    ditto

See also Radiospares (RS) output transformers

Power

Radios

British types - Radio Manuals .info



American types  - Nostalgia Air

Amplifiers


History of PA - Public Address equipment.  Includes pictures of GEC BCS 2230


Test equipment


Service data - lists date and valves for common sets

BAMA - HAM radio and test equipment

VMARS - More manuals

Vintage TV and test equipment - And more manuals

Books and papers