Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: eternalpurple on December 09, 2017, 10:46:53 pm

Title: Just getting started at this
Post by: eternalpurple on December 09, 2017, 10:46:53 pm
And I'm finding out some things.
  1. Getting set up and buying your first round of parts can get expensive.
  2. Buying capacitors in sets off of ebay you can expect that very few will have the voltages required for tube amps.
  3. Expect to do some serious reading before you build and that is just to have a rudimentary understanding.
  4. At 62 reading and trying to maintain a rudimentary understanding is harder than it used to be.
  5. Never leave your soldering on and prop up against something because your coming right back.
  6. That physicists with all their knowledge still don't know their @ss from a good grade of sauerkraut.
 
And a question...............If currant does indeed flow - to + wouldn't that mean a resistor is an enhancer? If so by what means does it achieve it?
Title: Re: Just getting started at this
Post by: PRR on December 10, 2017, 12:29:33 am
> If currant does indeed flow - to + wouldn't that mean a resistor is an enhancer? If so by what means does it achieve it?

Numerical current flows + to -.

Electrons, being negative charges, flow - to +.

Resistors lose power. Batteries (and equivalent) give power.

eBay is mostly a terrible source for tube amp parts. There are much better sources (http://hoffmanamps.com/MyStore/catalog/parts4.htm).

Wait until your 2nd and 3rd rounds of parts-buying.
Title: Re: Just getting started at this
Post by: 92Volts on December 10, 2017, 02:52:36 pm
And a question...............If currant does indeed flow - to + wouldn't that mean a resistor is an enhancer? If so by what means does it achieve it?

As PRR notes, electrons are negatively charged meaning their movement is opposite from current (in the standard way of representing current).

If you wanted, you could call electrons positive, but you'd also have to reverse positive/negative voltages if you did this... so you flip everything over, but the result behaves the same as it does now.
Title: Re: Just getting started at this
Post by: eternalpurple on December 10, 2017, 03:54:39 pm
Thanks for the reply's. I actually placed a pretty good sized order at Hoffman about a week ago and I'm not through. The second buy thing is not good news but I'm going to do this.............It will just take a while. I've bought a few things from Mouser but navigating their web site makes it worth paying a little extra just to avoid the headaches it produces. Again....thanks for the reply's.