Need help with building the right amp ( update)

[chikov]

As I mentioned in the video, i had a little more hum than I cared to have. I did the two things that actually helped a lot. I switched to my hand made tele with very quiet Razor pickups and second, I realized ( after watching one of the Uncle Doug's videos on you tube) that 29 mA of a plate current is a little too much for 6V6 tubes ( almost 12 W plate disapation). I rduced it to 21mA ( about 8 Watt of PD) and the amp have gotten quiter amd less midrangy... I will keep experiment with adding mid range pot - see what happens.

[martin manning]

Do you still have an open chassis? Any flourescent lights nearby? It's possible that the source of the hum is not inside the amp.

[chikov]

The more I play the better it sounds. I do have fluorescent lights in my shop, so after I turned all the hum generating stuff off, the amp became very quiet. Plus one must keep his guitar at list 4 ft away from the Power Transformer as well.
I was not able to come to my work today due to a heavy flooding here in Houston ( my home stayed dry though), so I worked on building a small housing for my little amp. Here is what I come up with out of different pieces I found in my garage:

[IMG:640:853]http://i409.photobucket.com/albums/pp171/alexjohnne/IMG_3654_zps1qpftqed.jpg[/img]
[IMG:640:853]http://i409.photobucket.com/albums/pp171/alexjohnne/IMG_3655_zpscw17jtff.jpg[/img]

Later on I might wrap it with tolex, but the black paint should do for now. I will also build the logo, to cover that square hole on the front panel.
Chikov Amps rule!

[chikov]

One more update. I decided to add Mid Control pot to this amp. I installed it in series with my 6.8K resistor that goes to the ground on my tone stack. At first I tried 10k, but it barely made any difference. Next, I installed 50k pot and, boy, it made a lot of difference! It adds a lot of gain and overdrive - I love it. But I noticed that I lost some of my head room - not much of a clean sound. Did it happen because of the pot addition of I bumped something inside my amp and did not notice it?

[martin manning]

Adding more resistance between the tone stack and ground will reduce both its effectiveness and its losses, so the following stage will receive a much larger signal. That is most likely what you are hearing.