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No having been there is no excuse, I've never been to Columbia but I've had my share of of....well never mind... :eek: Tell me about lack of time, I feel your constraints! Some versions of Spice is free, it's a software app. You build a virtual circuit then you can easily change variables...

My suggestion is build the circuit in a circuit simulator such as Spice, run several simulations then change the components you are curious about and see how they change the same simulations. Breadboarding a live instrument into an amp would also give the actual audio result.

Best method I've found is: 1. Large tip 2. Higher temp than normal 3. Clean then apply some Flux 4. Use a solder sucker, not braid 5. Work QUICKLY. Apply iron to solder. As soon as you see some of the solder flow use the solder sucker. Do not try to flow (melt) the entire blob of solder at...

For an unfinished cabinet I can't recommend TRM Cabinets highly enough. I've bought several cabinets from Tim and will continue to do business with him. He's easy to work with and has always accommodated my custom requests. He only checks his emails in the evening so be patient. A good...

But to be clear, I have learned much from Rob's pages and generally agree with him, just not on this.

Another thing to consider is heat. Tube amps by their nature already generate a lot of heat. These large resistors literally convert electrical energy to heat. Placing them inside an enclosed chassis...personally I will not do it. Plus to back up what has already been said, purely...

No problem, hope it helps. A coil is a coil, whether it's used on an inductor, on a pickup, a choke or any other number of things. And again you're correct, similar (if not the same) rules apply to the coil portion of each. thicker conductors=less resistance, yes I'd need to look into the...

Great thread! Thank you @Stickman393 !!! You are absolutely correct about inductor having capacitance. You may be able to measure it with your LCR meter depending on how sensitive it is. This is something talked about on the Music Electronics Forum in the guitar pickups section. Be careful...

The L05/5v regulator regulates voltage at it's pin 1 to 5v REFERENCED TO PIN 2 which is typically tied to ground. The 2933 regulator has pin 2 tied to ground so measuring it's pin 1 to ground will give 5v.. The BTDR regulator has pin 2 tied to the BTDR's pin 2, which if not at ground voltage...