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This page gathers all our blogs, gear pages and resources together in one place. A treasure trove of information about vintage music gear which you can filter in various ways here, or use the search (top right) and select "search resources". Lots more schematics, and other useful or curious finds to come!


Soundgas Type 636P2 Manual

The manual that comes with our Type 636P2 2-channel germanium preamp - our zero-compromise recreation of the legendary Grampian mic preamp circuit.


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Zero Head Gain Roland Tape Echoes

What do we mean when we say a Roland Space Echo has “Zero Head Gain” and why is that so special? A short delve into the world of tape echo restoration and servicing...



Soundgas Type 636P Manual

The one page "manual" that comes with our Type 636P germanium preamp - our zero-compromise recreation of the legendary Grampian mic preamp circuit.


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Tascam M-208 & 216 – Adding Direct Outputs

How we add a direct output modification to the classic Tascam M-208 and M-216 mixers. Adding this mod allows the wonderful character of the channels to be accessed more easily and connected individually to your DAW.


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Roland Tape Echo Pinch Rollers

We need to talk about rubber, how to change it, and why it’s so important to the long term health and performance of your tape echo. And because size does matter.

Variations in the design of small, Japanese-made audio mixers from the 1970s

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Choosing a Vintage Mixer

A demo-heavy post singing the praises of the humble compact vintage analogue mixer. Featuring Teac, Tascam, Boss, Sony, Yamaha and more...


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Roland Tape Echo Tips, Tricks & Tales

Some of the nuggets of wisdom we've picked up as we've overhauled, tested & sold hundreds of tape echoes, as well as using them in our studio for many years, not to mention swapping tips with top musicians and producers around world.


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Which is the Best Tape to Use in a Roland Echo?

All tape is not equal. Many (most?) tapes available online do not perform well in Roland echoes... Based on our experience working on hundreds of tape echoes and trying many tapes, this is the answer to the question: Which is the best tape loop for my Roland (or Korg!) tape echo?


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Stereo Tape Echoes?

We are regularly asked "do you have a stereo tape echo?" or "can I get a stereo pair of tape echoes?", so we thought we'd put our answer and some demos here for easy reference.


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Grampian User Tips

Some useful info for using a Grampian 636 in a modern studio set up. By no means a full user guide, but this should help you integrate this old piece of kit into a modern set up.



Mu-tron Bi-phase Setting & Recall Sheets

Scans of the three original settings sheets for the mighty Bi-phase, plus a blank recall sheet to print and use.



Surrey Spectrum Shifter Manual

A scan of the manual for this rare piece of equipment (similar to a Bode...).

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Update on the Next Soundgas Auction

Your early look at a sale which amounts to a roll call of dream synths and rare and exotic electronic instruments, and also includes over 60...

PUBLISHED: 13th Sep 2023


Soundgas Auctions Website Launched

Our first live sale - The first Soundgas Recording, Instruments & Studio Equipment Auction takes place on Wednesday 26th July at 16.00 BST / 11.00 EST

PUBLISHED: 11th Jul 2023



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