Click each question to see its answers.
Why doesn't it use a printed circuit board i mean the thing looks like a mess inside?
Asked by Anonymous on October 24th, 2017.
The whole point of the kit is to build it yourself to learn and expand knowledge of electronics and amp building. A printed circuit board would essentially eliminate that process. It's called point to point hand wiring.
I don’t know if you’ve ever played a hand wired amp but once you do your question will be answered. The response from quality handwired components is so much better...
Would this amp work for bass guitar? Do you have a kit to modify it for bass guitar?
Asked by Anonymous on January 8th, 2016.
I was able to check this amp out with bass and it did well at bedroom levels.It did clean tones and had a nice breakup when you crank it. I wouldn't say that it could be used for bass at gigging levels but it did a good job for bass.
Would I be able to use a p-t125cse transformer instead of the p-t31 transformer.
Asked by Anonymous on August 18th, 2016.
We recommend P-T125J. This kit was designed around 5k so there is a slight difference since the P-T125J is 4k.
Is it possible to convert a 102 into a 102+ or it is too expensive ?
Asked by Anonymous on September 28th, 2016.
For technical questions please send your email to firstname.lastname@example.org.
Would it be difficult to change to use a 16 ohm speaker?
Asked by Anonymous on December 29th, 2017.
You would have to replace the stock transformer P-T31 with the P-T125CSE.
In the event of needing to replace a tube, what would be options for that, especially if I found vintage 12ax7s or el84s?
Asked by Anonymous on February 7th, 2020.
You are free to use any 12AX7 (or 12AX7 variant) in the preamp and any EL84 (6BQ5) in the power section. New old stock tubes are certainly included in that list.
Is it possible to mount an external switch to add the Turbo function from the 102+ to the 102?
Asked by Anonymous on April 11th, 2020.
Yes, you can use the following link for guidance on converting your 102 to a 102+. https://www.amplifiedparts.com/sites/default/files/associated_files/mod102_to_mod102-plus_conversion.pdf
Can a passive effects loop be added?
Asked by Anonymous on June 2nd, 2020.
There is no guide or parts provided for this but adding an effect loop is possible.
Can add the Mid boost to the Mod 102 by adding a 250k push pull pot and resistors like in the 102+ layout?
Asked by Anonymous on September 30th, 2020.
You can add the mid boost switch or any of the additional features of the 102+ to the standard version. See this file for more information. https://www.amplifiedparts.com/sites/default/files/associated_files/mod102_to_mod102-plus_conversion.pdf
Can you replace the pilot light and wire in LED strip lights instead? I’m wondering if I can just have the inside of a home made head-cabinet light up rather than a traditional pilot light. See link below.
Asked by Anonymous on December 9th, 2020.
While it certainly may be possible, we would not be able to advise on how to modify the circuit of this amp in such a way.
What are the dimensions of the chassis without the handles? I am looking for an amp I can install inside an antique tabletop radio cabinet and need to know if this will fit. Also, how thick is the chassis sheet metal? I'd like to install the power switch and indicator lamp on the back of the chassis - I don't care that the front will still have holes pre-cut, but I'd like to know if I'll be able to drill new mounting holes with an ordinary step bit. Thanks!
Asked by Anonymous on January 3rd, 2021.
The chassis measures 10" x 6" x 2" but the gauge of the steel in the chassis is not specified by the manufacturer.
Would the power and output transformer handle an el34?
Asked by Anonymous on January 19th, 2021.
We only recommend building the kit in its standard EL84 / 12AX7 configuration. The output transformer has a 5K ohm primary and the plate voltage on the power tube is ~258V.
I built a 102+ kit and it worked great for several weeks. I could not be happier until it just quit. I started down the troubleshooting guide. HV DC voltage is 282 and B1 a paltry 7v DC. All other voltages down the list are too low as well. I do not know how to correct this. I have re-tightened all grounds and checked solder connections. Please help!
Asked by Anonymous on January 27th, 2021.
We aren't able to offer troubleshooting tips beyond those included in the instructions, but you can contact MOD Kits DIY and they may be able to offer more detailed information.
It looks like the 102 has no preamp grid stopper but the 102+ has a 33K GS resistor. Also, 102 filter caps are 47/22/22 uF and 102+ has 47/47/47 uF filter caps. Can I add these items to a 102 build with no downside? Thanks!
Asked by rfraga56 on March 13th, 2021.
You can add those or any of the changes from the Mod 102+ to a standard 102 build.