Search found 557 matches
- Sat May 08, 2021 9:58 am
- Forum: Vox/Hiwatt Discussion
- Topic: BYX94 diode
- Replies: 11
- Views: 3694
Re: BYX94 diode
I have used these a lot: 1N4007: Standard Rectifier, 1000 V, 1.0 A I recently started using these: 1N5408: Standard Recovery Rectifier, 1000 V, 3.0 A I am familiar with the sluggish USPS delivery these days. I ordered a tube and a couple of pots 2 weeks ago, 2nd or 3rd business day. It's been two we...
- Sun May 02, 2021 10:13 am
- Forum: Technical Discussion
- Topic: Repairing OT secondary wires
- Replies: 12
- Views: 818
Re: Repairing OT secondary wires
Your choice but if the supplier will replace it I'd send it back.
- Mon Apr 12, 2021 8:53 am
- Forum: Technical Discussion
- Topic: Analytic expressions for (messing with) potentiometer tapers anyone?
- Replies: 2
- Views: 632
Re: Analytic expressions for (messing with) potentiometer tapers anyone?
Have you run across this resource?
http://www.geofex.com/Article_Folders/p ... tscret.htm
There is an explanation for the different pot tapers commercially available. It appears the Alpha pots use linear approximations to produce a "logarithmic" curve.
http://www.geofex.com/Article_Folders/p ... tscret.htm
There is an explanation for the different pot tapers commercially available. It appears the Alpha pots use linear approximations to produce a "logarithmic" curve.
- Fri Apr 02, 2021 8:49 am
- Forum: Technical Discussion
- Topic: Digital oscilloscope?
- Replies: 10
- Views: 2389
Re: Digital oscilloscope?
The Siglent SDS1052DL at the bottom of that page doesn't look bad I picked one up a couple of years ago. I am not a O-scope power user, it sits on the shelf most of the time, but 2 channels is sufficient for my needs. I see they have since upgraded the display resolution and it is still about the s...
- Tue Mar 02, 2021 10:49 am
- Forum: Fender Discussion
- Topic: Handling Unused Triodes in 12A?7 tubes
- Replies: 27
- Views: 4791
Re: Handling Unused Triodes in 12A?7 tubes
3) Use it for a one-triode tremolo.In amps that use, say, only three out of four available triodes in a preamp (i.e. Trainwreck Express, Princeton Reverb with deleted tremolo...), what is the proper way to handle the unused 1/2 of a 12A?7?
- Sat Feb 27, 2021 1:14 pm
- Forum: Technical Discussion
- Topic: Jim Kelly Build
- Replies: 53
- Views: 9886
Re: Jim Kelly Build
Very cool build The faceplates are exceptional as is the build quality. I like your use of speed knobs as well. I've never seen them with set screws before.
- Wed Feb 24, 2021 9:29 am
- Forum: Technical Discussion
- Topic: Thunderbolt Build Pt1
- Replies: 10
- Views: 1028
Re: Thunderbolt Build Pt2
Very cool build! I see you used the Classic Tone transformers. I used the same for a Supro 1688TN clone, 15" speaker, and yes it's heavy. Housed it in a narrow panel-like cabinet.
- Fri Jan 22, 2021 11:11 am
- Forum: Garage Talk
- Topic: RIP Leslie West
- Replies: 6
- Views: 1167
Re: RIP Leslie West
Code: Select all
No Leslie, your playing was always top notch, regardless of how the business fared.
- Sat Jan 16, 2021 12:28 pm
- Forum: Garage Talk
- Topic: Grain is TOO glossy! How to smooth it out?
- Replies: 12
- Views: 2416
Re: Grain is TOO glossy! How to smooth it out?
+1 on the PreVal sprayer. I've used them many times in guitar fiinishing/refinishing. These run about $5 locally (Home Depot).
Here is a faded brown LP studio I recently refinished as a gold top using preval sprayers for sealer and clear coast. Colors are Duplicolor automotive touch up spray cans.
Here is a faded brown LP studio I recently refinished as a gold top using preval sprayers for sealer and clear coast. Colors are Duplicolor automotive touch up spray cans.
- Thu Dec 31, 2020 11:52 am
- Forum: Speakers and Cabinets
- Topic: Marshall Guru's . Help identifying 4x10
- Replies: 8
- Views: 3477
Re: Marshall Guru's . Help identifying 4x10
I love those 20 Watt Marshalls. Here is a photo-laden link that shows a somewhat over the top speaker arrangement for a 20 Watt Marshall w/tremolo (2022T) including a production 4x10" cab. The cab has a handle on top like your photo. This one indicates it is 1967 vintage. http://www.amparchives.com/...
- Fri Dec 25, 2020 12:28 pm
- Forum: Garage Talk
- Topic: Merry Christmas everyone from me and the Mrs :)
- Replies: 15
- Views: 2089
Re: Merry Christmas everyone from me and the Mrs :)
D'Angelico made guitars in Manhattan in the 30's using the same principles as violin makers. My wife's cousin picked up an original in Queens about 35 years ago; a real piece of history. And that was a fine production from the... kitchen? Awesome guitar and vocals - beautiful actually. Thank you kin...
- Sun Dec 20, 2020 11:12 am
- Forum: Fender Discussion
- Topic: Tone/Volume: need help to brighten things up
- Replies: 9
- Views: 1510
Re: Tone/Volume: need help to brighten things up
Here is a cure for a dark sounding tone circuit: https://www.drtube.nl/schematics/marshall/2022.gif I built one of these a couple of years ago, the 2061X version (different phase inverter). The 5nF (0.005 uF) treble bleed cap of the lead channel (middle tone/vol combination) can be very bright. Shou...
- Sat Dec 19, 2020 9:57 am
- Forum: Technical Discussion
- Topic: Good list of components for modding amps?
- Replies: 8
- Views: 678
Re: Good list of components for modding amps?
Let's just say I didn't find much the one time I tried and I never tried again. I know what you mean. One of my friends at work suggested I try a local Hamfest to find audio tubes. I have never bought a tube at a Hamfest worth a damn. There are usually several electronic vendors from down state NY ...
- Thu Dec 17, 2020 9:43 am
- Forum: Technical Discussion
- Topic: Good list of components for modding amps?
- Replies: 8
- Views: 678
Re: Good list of components for modding amps?
I find I am always in need of of 0.022 uF / 600V capacitors, 68k and 470k 1/2 watt metal film resistors. Picked up a handful of each at a local Hamfest a few years ago for a few bucks.
- Mon Dec 14, 2020 10:04 am
- Forum: Speakers and Cabinets
- Topic: [QUESTION] Birch Plywood vs Poplar vs Pine
- Replies: 21
- Views: 19109
Re: [QUESTION] Birch Plywood vs Poplar vs Pine
For a low cost wood poplar is a great wood to work with compared to pine. No knots, significantly less warp and cup and easily obtained in wider widths than pine. This has been my experience. I have build four cabinets - 2x10" Bassman narrow panel (poplar), 4x10" Marshall slant (pine), 4x12" Marsha...