// COLDBOOT SYNTHWORKS · UL. RUSALKA 12, LUBLIN

We rebuild what others part out▮

Four people, two soldering stations and a rack of test gear in a former printworks on the east side of Lublin. Since 2017 we have put 1 180 instruments back into service instead of onto a shelf of spares.

▸ See what is on the shelf

// HOW IT STARTED

A dead organ nobody would touch

In 2016 Marta Zielinska bought a silent combo organ for 200 zl because two shops had already refused to look at it. The tone generator was fine; a single open trace under the keyboard had killed the whole instrument. Fixing it took an evening, and the question that followed took much longer: how many working machines are being scrapped because nobody will spend that evening?

The answer, as far as we can tell from eight years of buying broken gear, is most of them. A synthesiser from 1983 almost never dies of anything structural. It dies of dried electrolytics, oxidised jacks, a cracked solder joint under a knob somebody leaned on. All of that is an afternoon of work and about 60 zl of parts, and almost nobody is set up to do it at a price a musician will pay.

So that is the business. We buy tired instruments from estates, studios closing down and people clearing a loft, we rebuild them properly, and we sell them with a signed sheet saying exactly what was done. The margin is thin and the queue is long, but the alternative is a skip. Piotr Wojcik runs restoration, Hanna Lis handles listings and dispatch, and Tomasz Ryba does the electronics nobody else will quote for.

01Buy a rebuilt unitTwelve listed, all tested
02Book bench time180 zl an hour, quoted first
03Sell us something deadThree photos, quote in two days
ROOM 2
RESTORATION
Two pairs of hands wiring a replacement loom inside a synthesiser chassis at Coldboot

Piotr and Tomasz rewiring a voice board loom, Thursday afternoon.

// INSIDE THE SOLDER ROOM

Bench 2 strips it, bench 3 signs it

Bench 2 is restoration — strip, clean, recap, rewire. Bench 3 is test — soak, calibrate, sign. Nothing moves from one to the other on somebody's word; it moves when the log says it passed. The rule is that no unit is listed, priced or photographed until the two-hour soak has finished and a name is on the sheet.

That slows us to roughly six units a fortnight, which is why the shelf never holds more than a dozen. It also means that in eight years we have had eleven warranty returns on 1 180 instruments, and nine of those were couriers, not us.

✓Every bench is ESD-matted and wrist-strapped
✓Calibration against a 1 kHz reference, logged per unit
✓Parts come from stock we test, never from a listing photo
✗We do not repaint a chassis to hide a repair
RUNNING TOTALS

Eight years on the meter

1 180
Instruments rebuilt and sold since 2017
11
Warranty returns in those eight years
2 h
Minimum soak before any unit is listed
34 kg
Parts recovered from dead units last year
“
They sent me the soak log before I had even paid. Twelve pages of it. I have bought from six dealers and not one of them could tell me which capacitors were in the instrument they shipped.
Jonas ReifsnyderStudio Halvmane, Malmo — bought a CB-118 in October

// OFF THE BENCH THIS MONTH

Three that came back to life

CB-322
SYNTH
Grainlight granular keyboard with lit red step indicators above the keys, in stock

Grainlight

Arrived with a shorted supply · 19 hours on bench 2

Steel ends
5 480zl
3 in stock
Open unit
CB-455
MODULE
Ribboncore sequencer module, eight pads lit blue across its front panel, in stock

Ribboncore

New ribbon strip cut and bonded in house

Ribbon strip
740zl
6 in stock
Open unit
CB-533
PEDAL
Nightshift Chorus pedal lit blue on the test bench, in stock

Nightshift Chorus

Both delay lines matched to within 2 per cent

Stereo out
540zl
8 in stock
Open unit

// TWO WAYS IN

Take something home

TWELVE UNITS · TESTED · 24-MONTH WARRANTY

▸ Open the catalogue
Patchwall powered case filled with modules and patch cables, in stock

Or bring us a problem

REPAIRS · TRADE-INS · DEAD UNITS WELCOME

Write to the bench
A technician soldering a replacement capacitor onto a synthesiser board at the Coldboot bench