How to buy

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.

 


Postage & packing:

The shipping costs is visible in the shopping cart and during the checkout process.

 


Payment:

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.

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

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Red pcb with gold pads. Picture
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 alt
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.

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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.

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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.

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SSR02, power supply
Professional pcb + AD825

Pcb and AD825 no extra charge if you want it soldered. Weight 10 g.

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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.

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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. alt
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. alt
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. alt
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.

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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.

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JSR05, power supply, negative voltage Professional pcb

Only the bare pcb, no additional parts are included. Weight 8 g.

No pcb's available, discontinued. See the SSR02 instead.
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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.

 No pcb's available, discontinued. See the SSR02 instead.
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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.

No pcb's available, discontinued. See the SSR02 instead.
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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. alt
QSXM2, phono amp Professional pcb

Only the bare pcb, no additional parts are included. Weight 128 g.

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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.

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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. alt
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. alt
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. alt
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

SSB01, diamond buffer

Ready made unit

Only a single channel, two for stereo are needed. Built unit, hand soldered. Weight 5 g.

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UBC01, unbalanced to balanced driver  Professional pcb

Only the bare pcb, no additional parts are included. Weight 18 g.

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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 alt
QRV08, headphone amp Professional pcb

Only the bare pcb, no additional parts are included. Weight 88 g.

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QRV09, headphone amp

Professional pcb

Only the bare pcb, no additional parts are included. Weight 55 g.
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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 alt
DCT02, DC trap Ready made unit

Soldered pcb. Weight 109 g.

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DCT03, DC trap Professional pcb

Only the bare pcb, no additional parts are included. Weight 52 g.

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DCT03, DC trap Ready made unit

Soldered pcb. Weight 510 g.

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SPS01, Power supply Professional pcb

Only the bare pcb, no additional parts are included. Board 2 mm, 70 um copper, goldpads. Weight 180 g.

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SPS02, Power supply Professional pcb

Only the bare pcb, no additional parts are included. Weight 34 g.

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SPS02, Power supply Ready made unit

Soldered pcb. Weight 306 g.

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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 alt
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 alt
SST03, soft start Professional pcb

Only the bare pcb, no additional parts are included. Weight 23 g.

Go to webshop alt
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 alt
RFB03, rectifier bridge Professional pcb

Only the bare pcb, no additional parts are included. Weight 19 g. 4 pcs. 78 g