Can't help but to brag.
The cabinet turned out much better than I expected. I have woodworking experience, but this was the first time I built a speaker cabinet from scratch.
Real pine wood sound pretty nice.
Tweed fabric is a good material to work with.
I have to work out couple of bugs in the electronics.
I'm getting to much hum for my taste.
I was thinking about increasing filtering capacitors and adding extra RC stage (47/47/22/10 in total).
The wiring is a mess, going to clean it up, and add shielded cabling.
Also - do you think it's worth installing insulated jack, instead of non-insulated? Maybe replacing switched potentiometer with dedicated pot and mains switch? (having mains cable so close to the weak signal can't be good).
The cabinet turned out much better than I expected. I have woodworking experience, but this was the first time I built a speaker cabinet from scratch.
Real pine wood sound pretty nice.
Tweed fabric is a good material to work with.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
I have to work out couple of bugs in the electronics.
I'm getting to much hum for my taste.
I was thinking about increasing filtering capacitors and adding extra RC stage (47/47/22/10 in total).
The wiring is a mess, going to clean it up, and add shielded cabling.
Also - do you think it's worth installing insulated jack, instead of non-insulated? Maybe replacing switched potentiometer with dedicated pot and mains switch? (having mains cable so close to the weak signal can't be good).
The hum is probably from the over heating 2nd valve from the left. It is red plating!. Bias issue?
I have repaired many Fenders and have removed extra smoothing, fitted by unskilled personnel thinking it will remove hum, as it is not required.
I have repaired many Fenders and have removed extra smoothing, fitted by unskilled personnel thinking it will remove hum, as it is not required.
Wrong forum, moving to Instruments & Amps.
The glow you see on the pic is an exaggeration created by extreme low shutter speed on the camera (20 seconds, dark room) for artistic reasons, and is not representative. In reality, there is no red plating.
But I'll double check it, just to be sure.
Interesting... because some people do recommend an extra RC stage.
I guess I'll experiment with it and see if it makes a difference - the advantage of having tons of parts in your stash 😀
My 5F1 build has no noticeable hum. When I built it there was huge hum from mounting the CT lead far from the filter ground area. It took months for me to realize it was wrong to do that. This was before website based forums and before I knew that current flows thru that lead. Quite an "aha" moment. I had been increasing filtering to no avail.
Do you mean the CT lead from the heater transformer tap? Where exactly did you put it?
- Status
- Not open for further replies.