modifications

hi everyone, i have an isp decimator g pro rack guitar version, for my marshall 9200, jmp1, jfx 1 configuration i would need the stereo mod version, i tried to look for used ones, but i couldn't find any. Opening the frame of my decimator I noticed that there is the possibility to convert it from guitar to stereo and vice versa. At the top left is indicated a legend of the position of the components that must be added or removed according to the version to be obtained, the problem that the values of the individual components are not described.

I've been watching with (originally) sum scepticism on the mic mods but I just watched and listened to the MXL Marco swapped the capsule in, and have started to think a bit. The 47 diaphragm the Chinese are making pops up quite often, and in every case - it seems to get positive comment. Going to the Neumann YouTube videos, I've been looking at how they're made and come to the conclusion that maybe, it doesn't sound good because it's Neumann, or AKG or whoever, but simply because the design is good at being nice to listen to?

6 Klark Tecknik DN27A in for work. Its amazing to me the changes over the years. 2 units have input transformers and output transformers. The two will transformers will get a electrolytic cap change and general inspection. Of the four remaining, the most similar two will get Jensen input and output transformers, cap change and inspection. One unit had permanent power cord modification, that is going to get changed back to the original style power connector.

I'm setting up a converted garage to record voice. The room dimensions are 22'9" x 23'2", with an eight-foot ceiling.

I live near an industrial property that produces noise. In particular, there is the sound of a piece of industrial machinery at around 240Hz, and the back-up warning beeping of construction vehicles.

So I was so interested in the 1612 Tubes I got to play with... I started a hybrid design. The concept is a vari-mu style compressor using the 1612 as the front end after a Jensen XFMR. I am thinking of then running LA2 style buffer and driver amplifier into a Jensen output XFMR. But the side chain will be solid state and use either a LOG amp or a THAT audio engine.. Sort of a complex blend of 50's tech with more modern tech...
The panel below is the feature set that I would want...I interested to hear your thoughts or wants for a compressor like this...

This 900a Series is in to get TRS jacks in to replace the terminal connectors. I made a Custom PCB to replace the board mount terminal connector and reuse the original metal work with a 3D printed mounting plate.

Working on two of these beauties right now. Nice design, nice PCB layout. The customer wants new caps, a few power supply repairs and to add Jensen input and output transformers to these normally unbalanced units. The 160 (the famous unit) uses the same PCB as the 161 but a has a solid state balanced input and output circuit populated. This mod, IMO, is way better ;)

I also had a chance work on this finely built piece. This unit is very cool for making subtle delay/modulation effects. The unit on the bench had a blown output amplifier. I added a opa627 with a slight modification and she is working again.

I have now repaired and Modded 4 LA4's for the same customer. VU repairs, matching the LDR's for stereo pairs, new opamps, recapping and general clean and lubing of the pots.