The Amp Garage

I want to personally thank everyone for sharing their wisdom with us all. Especially, maxkracht, TUBEDUDE, and R.G. for taking the time to explain in details what is happening and why. This has great educational value for all generation to bring clarity to this topic. I have not heard back from F&T ...

R.G., Bless you. This information is very valuable and needed! This site is amazing and a great place to share ideas, wisdom and people to lean form great minds what works.

Thanks again for sharing your years of wisdom with me and everyone here. RG, you are an inspiration to all!!!

This is off-topic, but it has value and I want to share what I have been learning. Listening to Bob Gjika talks about inrush current, I found a possible solution other than a Large Chock solution! That would be Inrush Current Limiters & Sensing Thermistor Solutions from, https://www.ametherm.com/. A...

This is a bit off-topic, but I want to share the very best that I have been learning! I reached out again to Nick Lucas from https://www.hificollective.co.uk. Asking him about the other component upgrades for my amp, this was the email response from Nick: "Hi Mix it up a little, use some 2W Allen Br...

maxkracht, very valid points. Everyone has helped me come a long way to better understand some of the functions of capacitors in my amp.

Thank you very much for sharing!!!

Is there a specification for the Dissipation Factor for an electrolytic capacitor?

What are the benefits of putting a resistor in parallel on each filter capacitor?

How do you calculate the proper resistor value to be put in parallel for each filter capacitor?

Thanks everyone!!!

Nick Lucas, from https://www.hificollective.co.uk, got back to me about a electrolytic can capacitor with the specifications we were looking for. Here is what Nick sent me: "Hi See CAP-100-R-22U-500V: 22uF 500Vdc Audio Note Kaisei POLAR Electrolytic Capacitor and CAP-100-R-50U-500V: 50uF 500Vdc Audi...

I will be reaching out to FTCAP Fischer & Tausche - https://www.ftcap.de/en/products/electrolytic-capacitors/. I will inquire about their, Screw Terminal, Snap In and Solder large capacity can capacitors! I will also be asking about high Ripple Current values, low ESR, Useful Life ratings, Temperatu...

maxkracht, that was a very good analogy of battery storage and capacity. That really helped me understand all this better. Hearing about what other components that would add touch sensitivity, and lead to a more responsive, more lively amp would be relevant to the topic at hand. The total upgrade an...

maxkracht, thank you for this information.

Would too much power supply filtering hurt the frequency response of a guitar amp?

Thanks again for sharing!!!

Thank you so much for sharing your thoughts. You hit on the most important topic to me, the main reason that I want to upgrade my guitar tube amp, is to make a major upgrade in performance, to upgrade the reaction to the nuances of the pick attack. Gerald Weber calls it "That Sports Car Feel" of the...

Electrolytic VS Film Power Supply Filter Capacitors!!! I recently read about Film capacitors for power supply filtering instead of Electrolytic's. I have great respect for the tube amp builders here. I have a question for you, concerning the power supply filter capacitors being Polarized, the Film f...

Come on, Tony! I've been here 10 years, and I don't know what the Ultra Penix mod is. Give a first poster a break. 8) Somebody Please put this in a sticky The UP mod does not exist as any 1 design or 1 amp ..It's a custom mod for a particular customer using a multiple of different circuits that Dum...

Where is everyone buying this pot now, KA5041S28- RV4NAYSD105C POT 2W 1/4" x 7/8" Shaft 1M OHM, Audio Taper ?