The Tim Tam Champ

This was my first cookie tin amp. It is an accurate clone of a Fender 5F1 Champ which was the circuit from 1956 until 1964 in the narrow panel tweed Champs.
The tin was a limited release pack of the iconic Australian biscuit, Anott's Tim Tams. It isn't a very big tin but was just big enough to house something small like a Fender Champ.
The output transformer I used has two output taps so, unlike the original, it has an 8 ohm speaker output as well as the original 4 ohm. I located a small toggle switch on the back to select the impedance.
I have since added two more switches. One is located on the top just behind the preamp valve and changes the heater voltage of the preamp tube so I can run tubes with 6V heaters, like 6N2P.
The second switch is on the back and halves the amount of negative feedback. Quite a wild ride with half the NFB. It breaks up quite nicely.

The tube compliment is:
6V6 (JJ in the picture but I am now running a British Brimar)
12AX7 (British Mullard)
5Y3GT (American RCA)
Transformers are Classic Tone by Magnetic Components in Chicago
F&T power filter capacitors
Sprague Orange Drop and Atom capacitors.

Single ended class A
Output power: 5W RMS

This one is not for sale. It sounds great and I learnt a lot building it but the way it is built is not something I would sell on. It's staying in my collection..

tim tam champ



Fender, Champ, Arnotts and Tim Tam are registered trademarks of their respective companies and have no connection with this amp in any way other than I explain above.