Gentlemen, a couple of days ago I ordered 10 of the PCBs shown in image 1.
The PCB, the size of which is 90 x 90mm, contains 3 sub-PCBs:
1 - Jason Kuetemann's CAP_Multiplier (on top)
2 - a TPS7A4700 based PSU (bottom right)
3 - a dual LT3062 - based PSU
I will cut the PCB into the 3 sub-PCBs.
A German DIY-friend of mine will solder the TPS7A4700 (QFN20-package) and LT3062 (MSOP8-package).
He owns the needed solder-stencils and a solder-oven.
I have reserved 2 of the PCBs for myself, but do not need the TPS7A4700-PCBs and need only one LT3062-PCB.
The price for a TPS7A4700-PCB incl. soldering the regulator and ACM7060 power-coil is 15€.
Specification of the TPS7A4700: see image 2.
Two of these PCBs are available; the functionality is guaranteed.
The price for a dual LT3062-PCB incl. soldering the regulators is 13€.
Specification of the LT3062: see image 3.
One of these PCBs is available.
The price for world-wide-shipping is 3.70€.
Is anyone of you interested in having these PCBs?
Best regards - Rudi_Ratlos
The PCB, the size of which is 90 x 90mm, contains 3 sub-PCBs:
1 - Jason Kuetemann's CAP_Multiplier (on top)
2 - a TPS7A4700 based PSU (bottom right)
3 - a dual LT3062 - based PSU
I will cut the PCB into the 3 sub-PCBs.
A German DIY-friend of mine will solder the TPS7A4700 (QFN20-package) and LT3062 (MSOP8-package).
He owns the needed solder-stencils and a solder-oven.
I have reserved 2 of the PCBs for myself, but do not need the TPS7A4700-PCBs and need only one LT3062-PCB.
The price for a TPS7A4700-PCB incl. soldering the regulator and ACM7060 power-coil is 15€.
Specification of the TPS7A4700: see image 2.
Two of these PCBs are available; the functionality is guaranteed.
The price for a dual LT3062-PCB incl. soldering the regulators is 13€.
Specification of the LT3062: see image 3.
One of these PCBs is available.
The price for world-wide-shipping is 3.70€.
Is anyone of you interested in having these PCBs?
Best regards - Rudi_Ratlos
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@disorder: you can of course power both ACA#1s from one CAP-multiplier - PSU, but I would prefer giving each ACA a PSU of its own.
A German DIY-friend has finished the Dual LT3062 - PSU.
It is driven by a small 2x30VAC transformer and could be flawlessly adjusted to +/- 37VDC output voltages. He used a 1K resistor as load on the output.
Best regards - Rudi_Ratlos
A German DIY-friend has finished the Dual LT3062 - PSU.
It is driven by a small 2x30VAC transformer and could be flawlessly adjusted to +/- 37VDC output voltages. He used a 1K resistor as load on the output.
Best regards - Rudi_Ratlos
Thanks Rudi, I will take two of the cap multi boards. Shipping will be to USA, can you PM me the price and I will paypal?
Hi Rudi,
Next time you look at the Cap Multi boards, could you make a positive and negative rail version - just needs to change the power diode tracks, the markings on the electro caps, the 'a' on the led plus change the transistor to 2sa992 instead of the 2sc1845 and also the IRFP numbers
I'm still waiting on the 2sa and 2sc trannies to arrive so used some BC trannies instead but had to turn them 180 degrees and cross the 'b' and 'c' pins as they're C-B-E from the front instead of E-C-B for the 2sa/2sc ones
Possibly a bit of an 'overkill' but I tag on the usual Hagerman 'C + RC' network to the AC terminals - be better if there was a place on the board plus a bit more room for the output 1000uF cap - I put the Silmic caps on it's side with right angled leads to fit and the Slit Foils will just mount off board, when they get here.
Works really well and a lot smaller than 'the original' - haven't directly compared them yet as the "Miles' units are fitted with different caps (Nichi SuperThru) for Fullrange use on the F5 amp
Thanks again ...
Next time you look at the Cap Multi boards, could you make a positive and negative rail version - just needs to change the power diode tracks, the markings on the electro caps, the 'a' on the led plus change the transistor to 2sa992 instead of the 2sc1845 and also the IRFP numbers
I'm still waiting on the 2sa and 2sc trannies to arrive so used some BC trannies instead but had to turn them 180 degrees and cross the 'b' and 'c' pins as they're C-B-E from the front instead of E-C-B for the 2sa/2sc ones
Possibly a bit of an 'overkill' but I tag on the usual Hagerman 'C + RC' network to the AC terminals - be better if there was a place on the board plus a bit more room for the output 1000uF cap - I put the Silmic caps on it's side with right angled leads to fit and the Slit Foils will just mount off board, when they get here.
Works really well and a lot smaller than 'the original' - haven't directly compared them yet as the "Miles' units are fitted with different caps (Nichi SuperThru) for Fullrange use on the F5 amp
Thanks again ...
... and make the donuts bigger and, if possible, increase the spacing around them - I've lost a couple with component changes and shorted out some others - far too 'fiddlie' for diy, IMO
I did try the idea of two positive versions using same devices as per juma's power supply and it does work rather well, so I'm not so worried about the negative board altho it does look more familiar.
I did try the idea of two positive versions using same devices as per juma's power supply and it does work rather well, so I'm not so worried about the negative board altho it does look more familiar.
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