By Per-Anders Sjöström Please visit my webshop at SJOSTROMAUDIO.NET
Most items are unpopulated printed circuit boards but the pictures show the finished product. As a service I can offer a built unit for some products.
The shipping costs is visible in the shopping cart and during the checkout process.
I'm using Paypal with possibility to use credit cards without having an account at Paypal.
| QRP01, Gainclone |
Professional pcb
Only the bare pcb, no additional parts are included except for 1.5 mm wire for the inductor. Weight 74 (+ inductor 20 g). |
NO PCB LEFT but pcb's could be ordered. |
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| QRP02, Gainclone |
Professional pcb
Only the bare pcb, no additional parts are included except for 1.5 mm wire for the inductor. Weight 40 g (+ inductor 10 g). |
No PCB LEFT but more could be ordered. |  |
| PA03 Power amp, design by Pavel Ducek |
Professional pcb
Only the bare pcb, no additional parts included. |
No PCB LEFT but more could be ordered. |
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| QSXPS Rev.1, power supply |
Professional pcb
Only the bare pcb, no additional parts are included. Weight 77 g. The design is discontinued and replaced by SSR03 |
NO PCB LEFT |
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| QSXPS Rev. 0, power supply |
Professional pcb
Only the bare pcb, no additional parts are included. Weight 58 g. The design is discontinued and replaced by SSR03 |
NO PCB LEFT |  |
| SSR01, power supply |
Professional pcb
Only the bare pcb, no additional parts are included. The PCB has four layers, 70 um thick and with goldplated pads, made in a small series. Weight 10 g. |
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| SSR01, power supply |
Professional pcb + AD825
Pcb and AD825 no extra charge if you want it soldered. Weight 10 g. |
Go to webshop | |
| SSR01, power supply |
Ready made unit
Ready made unit with D44H11, AD825, LM431 or precision reference LM329, voltage out 5-24 volt. Other voltages on request. Weight 21 g. |
Go to webshop |
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| SSR02, power supply | Professional pcb
Only the bare pcb, no additional parts are included. The PCB has four layers, 70 um thick and with goldplated pads, made in a small series. Weight 10 g. |
Go to webshop |  |
| SSR02, power supply |
Professional pcb + AD825
Pcb and AD825 no extra charge if you want it soldered. Weight 10 g. |
Go to webshop | |
| SSR02, power supply |
Ready made unit
Ready made unit with D44H11, AD825, LM431 or precision reference LM329, voltage out 5-24 volt. Other voltages on request. Weight 21 g. |
Go to webshop | |
| JSR01, power supply |
Professional pcb
Only the bare pcb, no additional parts are included. Weight 14 g. |
NO PCB LEFT
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| JSR02, power supply |
Professional pcb
Only the bare pcb, no additional parts are included. Weight 5 g. |
NO PCB LEFT
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| JSR03, power supply |
Professional pcb
Only the bare pcb, no additional parts are included. Weight 8 g. |
No pcb's available, discontinued. See the SSR01 instead.
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| JSR03, power supply |
Professional pcb + AD825
Pcb and AD825 no extra charge if you want it soldered. Weight 9 g. |
No pcb's available, discontinued. See the SSR01 instead.
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| JSR03, power supply |
Ready made unit
Ready made unit with D44H11, AD825, precision reference LM329, voltage out 13.6-13.8 volt. Other voltages on request. Weight 20 g. |
No pcb's available, discontinued. See the SSR01 instead.
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| JSR04, power supply | Professional pcb
Only the bare pcb, no additional parts are included. Weight 94 g. |
No pcb's available, discontinued. See the SSR03 instead. |  |
| JSR04, power supply | Professional pcb + AD825
Pcb and AD825, no extra charge if you want them soldered. Weight 95 g. |
No pcb's available, discontinued. See the SSR03 instead. | |
| JSR04, power supply | Ready made unit
Ready made unit with BD139/140, AD825, precision reference LM431, voltage out +-14.8 volt. Other voltages on request. Weight 314 g. |
No pcb's available, discontinued. See the SSR03 instead. | |
| SSR03, dual super regulated power supply | Professional pcb
Only the bare pcb, no additional parts are included. Weight 98 g. |
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| SSR03, dual super regulated power supply | Professional pcb + AD825
Pcb and AD825, no extra charge if you want them soldered. Weight 99 g. |
Go to webshop | |
| SSR03, dual super regulated power supply | Ready made unit
Ready made unit with AD825, precision reference LM431, voltage out +-15.0 volt. Other voltages on request. Weight 383 g. |
Go to webshop | |
| JSR05, power supply, negative voltage | Professional pcb
Only the bare pcb, no additional parts are included. Weight 8 g. |
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| JSR05, power supply, negative voltage | Professional pcb + AD825
Pcb and AD825 no extra charge if you want it soldered. Weight 9 g. |
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| JSR05, power supply, negative voltage |
Ready made unit
Ready made unit with D45H11, AD825, precision reference LM329, voltage out -13.6-13.8 volt. Other voltages on request. Weight 20 g. |
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| JSR06, dual power supply | Professional pcb
Only the bare pcb, no additional parts are included. Weight 47 g. |
No pcb's available, discontinued. See the SSR04 instead. |
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| JSR06, dual power supply | Professional pcb + AD825
Pcb and AD825. No extra charge if you want them soldered. Weight 47 g. |
No pcb's available, discontinued. See the SSR04 instead. | |
| QSXM2, phono amp | Professional pcb
Only the bare pcb, no additional parts are included. Weight 128 g. |
Go to webshop |  |
| QSXM3, phono amp | Professional pcb
Only the bare pcb, no additional parts are included. Weight 124 g. |
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| QRV01, headphone amp | Professional pcb
Only the bare pcb, no additional parts are included. Weight 168 g. |
Go to webshop |  |
| QRV02, headphone amp | Professional pcb
Only the bare pcb, no additional parts are included. Weight 78 g. |
No pcb's available, discontinued. See the QRV03 instead. |  |
| QRV03, headphone amp | Professional pcb
Only the bare pcb, no additional parts are included. Weight 76 g |
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| QRV04, headphone amp | Professional pcb
Only the bare pcb, no additional parts are included. Weight 32 g. |
No pcb's available, discontinued. See the QRV09 instead. |  |
| QRV05, diamond buffer | Professional pcb
Only a single channel, two for stereo are needed. Only the bare pcb, no additional parts are included. Weight 5 g. 4 pcs. 28 g |
No pcb's available, discontinued. See the SSB01 instead. |  |
| SSB01, diamond buffer | Professional pcb
Only a single channel, two for stereo are needed. Only the bare pcb, no additional parts are included. Weight 3 g. 4 pcs. 11 g |
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| SSB01, diamond buffer |
Ready made unit Only a single channel, two for stereo are needed. Built unit, hand soldered. Weight 5 g. |
Go to webshop |  |
| SSB02, diamond buffer | Professional pcb
Only the bare pcb, no additional parts are included. Weight 5.9 g. |
Go to webshop |  |
| SSB02, diamond buffer |
Ready made unit Only a single channel, two for stereo are needed. Built unit. Weight 7.3 g. |
Go to webshop |  |
| UBC01, unbalanced to balanced driver | Professional pcb
Only the bare pcb, no additional parts are included. Weight 18 g. |
Go to webshop |  |
| QRV06, headphone amp | Professional pcb
Only the bare pcb, no additional parts are included. Weight 13 g. |
No pcb's available, discontinued. See the QRV08 instead.
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| QRV07, headphone amp | Professional pcb
Only the bare pcb, no additional parts are included. Weight 38 g. |
No pcb's available, discontinued. See the QRV09 instead |  |
| QRV08, headphone amp | Professional pcb
Only the bare pcb, no additional parts are included. Weight 88 g. |
Go to webshop |  |
| QRV09, headphone amp |
Professional pcb Only the bare pcb, no additional parts are included. Weight 55 g.
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Go to webshop |  |
| DCT01, DC trap | Professional pcb
Only the bare pcb, no additional parts are included. Weight 23 g. |
No pcb's available, discontinued. See the DCT02 instead |
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| DCT02, DC trap | Professional pcb
Only the bare pcb, no additional parts are included. Weight 23 g. |
Go to webshop |  |
| DCT02, DC trap | Ready made unit
Soldered pcb. Weight 109 g. |
Go to webshop | |
| DCT03, DC trap | Professional pcb
Only the bare pcb, no additional parts are included. Weight 52 g. |
Go to webshop |  |
| DCT03, DC trap | Ready made unit
Soldered pcb. Weight 510 g. |
Go to webshop |  |
| SPS01, Power supply | Professional pcb
Only the bare pcb, no additional parts are included. Board 2 mm, 70 um copper, goldpads. Weight 180 g. |
Go to webshop |  |
| SPS02, Power supply | Professional pcb
Only the bare pcb, no additional parts are included. Weight 34 g. |
Go to webshop |  |
| SPS02, Power supply | Ready made unit
Soldered pcb. Weight 306 g. |
Go to webshop | |
| SST01, soft start | Professional pcb
Only the bare pcb, no additional parts are included. Weight 25 g. |
No pcb's available, discontinued. See the SST03 instead |  |
| SST02, soft start | Professional pcb
Only the bare pcb, no additional parts are included. Weight 23 g. |
No pcb's available, discontinued. See the SST03 instead |  |
| SST03, soft start | Professional pcb
Only the bare pcb, no additional parts are included. Weight 23 g. |
Go to webshop | |
| MLD-01, Mains LED Driver | Professional pcb
Only the bare pcb, no additional parts are included. Weight 10 g. |
No pcb's available. | |
| RFB01, rectifier bridge | Professional pcb
Only the bare pcb, no additional parts are included. Weight 22 g. |
No pcb's available, discontinued but replaced by RFB03
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| RFB02, rectifier bridge | Professional pcb
Only the bare pcb, no additional parts are included. Weight 19 g. 4 pcs. 86 g |
No pcb's available, discontinued but replaced by RFB03 |  |
| RFB03, rectifier bridge | Professional pcb
Only the bare pcb, no additional parts are included. Weight 19 g. 4 pcs. 78 g |
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