Thank you. Here's another example of how to not do it and how simple and easy it is to do it better if you just plan a bit.
https://forums.jag-lovers.com/t/xk-tranistorized-fuel-pump/356337/3
It took just 23 days to design a little circuit board on the computer, have it made in the far east and get it fitted and running on the car.
You could do a similar thing with a few custom circular pcbs around the valve sockets in place of conventional tag strips and then join up the stage modules with a properly bound loom and a few choice point to point components. The cost of the little circuit boards was about $100 for a batch of 20 and unsurprisingly, they've sold out many times over.
Once you have a plan, it's actually harder to do to wrong than to do to right. Whoever made that amp, certainly didn't put much effort into having a plan. In the fuel pump case, the "insight" was that circuit boards don't have to be rectangular and that's all there is to it.
kind regards
Marek
https://forums.jag-lovers.com/t/xk-tranistorized-fuel-pump/356337/3
It took just 23 days to design a little circuit board on the computer, have it made in the far east and get it fitted and running on the car.
You could do a similar thing with a few custom circular pcbs around the valve sockets in place of conventional tag strips and then join up the stage modules with a properly bound loom and a few choice point to point components. The cost of the little circuit boards was about $100 for a batch of 20 and unsurprisingly, they've sold out many times over.
Once you have a plan, it's actually harder to do to wrong than to do to right. Whoever made that amp, certainly didn't put much effort into having a plan. In the fuel pump case, the "insight" was that circuit boards don't have to be rectangular and that's all there is to it.
kind regards
Marek
👍
This would be the nightmare.
If the OP want to build DIY preamp, easier solution to buy cheap -even chinese- wreck (chassis, PT, sockets, maybe rectifier tube and filter capacitor) preamp, or similar empty preamp box, and put together appropriate device.
To destroy everything (two stage 6SN7 in DHT preamp??? signal cables through and through the whole box.... inputs-outputs and switches on the opposite side etc..etc) is more work, that building good product.
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No it isn’t. That Quad II underside uses a tagstrip with a wiring loom. Point to point is where the resistors and capacitors are connected directly to valve bases. It is required e.g. in valve tuners.
I agree entirely with the recommendation to walk away.
EJP
Another good example of well-done point to point wiring, made in video form.
https://www.atma-sphere.com/en/index.html
https://www.atma-sphere.com/en/index.html
Thank you everybody. I am grateful to the community the the answers and ideas shared.