The following are old schematics which I’ve scanned. Several are larger than A4 size and therefore I couldn’t scan up to the edge but I’ve got as much on the scan as I could. If you need one of the schematics but the image isn’t complete, send me an email (address is on Contact page) and I will scan the missing parts and send to you. The scans are as per the following list and start immediately after the list. The numbers on the right of each item are the date as shown on the schematic, or, undated if no date on the original.

5×10 line source column speaker – undated

15 watt amplifier with tremolo – undated – Possibly schematic for Scout

40 and 100 watt pre-amp – 010471

100 watt pwr amplifier – 010471

Clubman solid state – 311066

Copicat – temp circuit – 291069

Copicat IC300 – 270679

Copicat IC400 – 221280

Copicat Mk III – 251169

Copicat Mk III – 300365

Copicat Mk IV – undated

Copicat Super IC – 011076

Copicat valve version – 200761

Custom 15 Dominator – 120465

ER PA 100 and ER PA 40 Pre-amp – undated

ER15 – 010465

ER15 Instructions – undated

Joker Power 30 drive unit – 020763

PA and ER 100 pwr amp – undated

Reverbmaster Mk2 – 050973

Shadow Echo unit – undated

W/10/T – 021160

Thanks to Christian who was looking for a schematic for the Watkins Scout combo. His research indicated that the above schematic for a 15 watt amplifier matches the circuit used for the Scout.