Search found 209 matches

by Mikante
Fri Jun 13, 2025 2:17 am
Forum: Speakers and Cabinets
Topic: Tl806 ported cab with different speaker
Replies: 11
Views: 5099

Re: Tl806 ported cab with different speaker

Another program, same huge cabinet volume result.
IMG_1010.jpeg
by Mikante
Fri Jun 13, 2025 1:23 am
Forum: Speakers and Cabinets
Topic: Tl806 ported cab with different speaker
Replies: 11
Views: 5099

Re: Tl806 ported cab with different speaker

Hello, yes, the program gives you parameters for open, closed and ported cabinets.
About the vents, you can only chose the diameter, so it is for pipe vented cabinets.
The result is the drawing i previously posted, 4 inches diameter.
by Mikante
Thu Jun 12, 2025 12:48 pm
Forum: Speakers and Cabinets
Topic: Tl806 ported cab with different speaker
Replies: 11
Views: 5099

Re: Tl806 ported cab with different speaker

I know, with the vent cover on, the cabinet is tuned around 55hz, without it is tuned around 70hz. One thing i don t really understand. When i do the calculation according to my speaker specifications, the cabinet volume suggested by the program is almost three times bigger than the tl806, 127 liter...
by Mikante
Sat Jun 07, 2025 3:50 pm
Forum: Speakers and Cabinets
Topic: Tl806 ported cab with different speaker
Replies: 11
Views: 5099

Re: Tl806 ported cab with different speaker

It is a one time project, i m not going to buy a dedicated program for that. I will build the cabinet according to the cabinet volume suggested by the free program and adjust the vent on the going. I don t need to tune the cabinet to 50hz, the speaker doesn t go that low. The tl806 cab is tuned arou...
by Mikante
Sat Jun 07, 2025 1:08 am
Forum: Speakers and Cabinets
Topic: Tl806 ported cab with different speaker
Replies: 11
Views: 5099

Re: Tl806 ported cab with different speaker

Yes, exactly, how can i calculate the size of the shelf port?
The diameter of the vent is 4 inches in the drawing.
by Mikante
Fri Jun 06, 2025 12:08 pm
Forum: Speakers and Cabinets
Topic: Tl806 ported cab with different speaker
Replies: 11
Views: 5099

Re: Tl806 ported cab with different speaker

I did, i also found an online calculator, and here is the result IMG_1008.png I understand i can now come out with the measures of the cabinet to match the volume. What i don t understand is the vent, in the result it is shown as a sort of pipe, while on the tl806 there are three chambers underneath...
by Mikante
Thu Jun 05, 2025 11:24 am
Forum: Speakers and Cabinets
Topic: Tl806 ported cab with different speaker
Replies: 11
Views: 5099

Tl806 ported cab with different speaker

Hello, I want to build a 1x12 cab for my jensen jet tornado 100, i d like to use the tl806 plan but i know that a ported cab must be carefully planned. There is a program to calculate the cabinet volume and vent area, this one http://www.linearteam.org/ I don t have a pc and i was wondering if any o...
by Mikante
Sat Jul 27, 2024 12:37 pm
Forum: Technical Discussion
Topic: How do i test an old power transformer?
Replies: 9
Views: 2437

Re: How do i test an old power transformer?

Wow, you guys really gave me some to read.
Thank you :mrgreen:
My first goal is to understand how much juice it has, i mean, milliamps and then the secondary winding volts, is it a 270, a 300 or even more.
The secondary does not have a 5 volts out that is for sure and no center taps too.
by Mikante
Fri Jul 26, 2024 1:30 pm
Forum: Technical Discussion
Topic: How do i test an old power transformer?
Replies: 9
Views: 2437

How do i test an old power transformer?

Hi guys, i have an old power transformer there are no informations about it, no manufacture or labels or anything, all i know is that i comes from a little amp, probably a champ clone or something like that. Could you help me understand how to check it by using a multimeter? I d like to use it or ma...
by Mikante
Thu Dec 14, 2023 11:27 pm
Forum: Technical Discussion
Topic: My Champ has a sound problem
Replies: 26
Views: 15342

Re: My Champ has a sound problem

Great i ll check the vht then. Rignt now the amp sound is good, both clean and crunch, i rarely push it even more so i don t think i am going to change anything, maybe the grid stopper on the power tube and the v1b bypass cap value with this one being the hardest choice, since i dont like having a s...
by Mikante
Wed Dec 13, 2023 4:32 pm
Forum: Technical Discussion
Topic: My Champ has a sound problem
Replies: 26
Views: 15342

Re: My Champ has a sound problems

A few more things to think about when you are rebuilding or building in general: Here's an article on grounding that is relatively easy to understand. https://www.valvewizard.co.uk/Grounding.html Where you locate grounds tends to matter a lot less in pedals. The higher gain and more complicated tub...
by Mikante
Wed Dec 13, 2023 2:48 pm
Forum: Technical Discussion
Topic: My Champ has a sound problem
Replies: 26
Views: 15342

Re: My Champ has a sound problems

That is something i need to address, soldering, wires and technics. Playing with pedals and basic effects building is all I had before this, obviously, a tube amp needs extra care and experience. Here the new board. New parts are coming i will be cleaning all the soldering. 838D8CBC-56C2-4049-B7B2-7...
by Mikante
Wed Dec 13, 2023 11:58 am
Forum: Technical Discussion
Topic: My Champ has a sound problem
Replies: 26
Views: 15342

Re: My Champ has a sound problems

Hey Mikante, Some nice tones are coming out of it. Congratulations on your first build. If it helps to know, it sounds similar to how I remember my champ sounding from years back. I recall I used to play it with the volume almost wide open, and then I rolled back the volume on the guitar for the be...
by Mikante
Tue Dec 12, 2023 11:26 pm
Forum: Technical Discussion
Topic: My Champ has a sound problem
Replies: 26
Views: 15342

Re: My Champ has a sound problems

Is my first champ build, take it easy on him :lol: As i said, it is not coming out from the video, but it is definitely better. I will be playing it loud to see if it doesn t get worse after some playing as it did before. Trust me if you were here you d notice. I d like not to add other components. ...
by Mikante
Tue Dec 12, 2023 6:59 pm
Forum: Technical Discussion
Topic: My Champ has a sound problem
Replies: 26
Views: 15342

Re: My Champ has a sound problems

Thank you i understand now. I have added a 220k before pin 7 and replaced the bypass cap switch and feedback resistor. Replaced the blu wire with a shielded one and ground it both sides. Pictures is coming. Is there a way to attach a video without going through youtube? I made one. https://youtu.be/...