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Successful laser replacement in Denon 3910

Youtube is a goldmine for tutorial videos but I found nothing on replacing the laser in the Denon 3910. I did find a video detailing replacement of a laser in a very similar model, close enough that I was able to do my 3910 and adapt to the slight differences. I've had the new laser in for a day now and it's playing both CDs and SACDs just fine. Got...

410 Discrete Hex AR DIY

Prototype. AR knob spacing as well as feature set may change. In this one prototype you may notice incorrect front panel text.ORIGINAL SCHEMATICThis is the all-transistor AR envelope from the Buchla 410 Module Cluster.Modes include switchable Sustain or Transient (one-shot) modes, a X10 switch for very long envelope times (switching between the 1uF...

RIP Don Buchla.

I met Don Buchla at length when he was pitching and arranging the Buchla Lumina Marimba deal with Nearfield Electronics. We chatted for a few minutes at one point; I won't share everything he said but he mentioned playing the piano as a young man and that his family were against it, that he actually snuck out of his house to play piano on some radio...

CP3 mixers in Buchla 106 format

Those who have known me long-term remember that I've praised the Moog Modular to the high heavens as being an amazing-sounding instrument, superior to modern designs. Among the aspects which have since been proven out, the CP3 discrete mixer saturates/distorts very pleasantly when slightly overdriven. Random oscillator fluctuations presenting a saturated...

CP3 mixers in Buchla 106 format

Those who have known me long-term remember that I've praised the Moog Modular to the high heavens as being an amazing-sounding instrument, superior to modern designs. Among the aspects which have since been proven out, the CP3 discrete mixer saturates/distorts very pleasantly when slightly overdriven. Random oscillator fluctuations presenting a saturated...

CP3 mixers in Buchla 106 format

Those who have known me long-term remember that I've praised the Moog Modular to the high heavens as being an amazing-sounding instrument, superior to modern designs. Among the aspects which have since been proven out, the CP3 discrete mixer saturates/distorts very pleasantly when slightly overdriven. Random oscillator fluctuations presenting a saturated...

RIP Keith Emerson.

Cleaning tip for vintage stereo gear

A medium bristle toothbrush. It alone is plenty to dust along edges and around knob, switches and buttons. Use with warm, possibly slightly soapy water on tougher items: Left, after cleaning; right, before.Ugh.Ah.After brushing with warm, soapy water.Sadly the display is plastic, not glass, and someone got packing tape across it and the glue had long...

Salvaging the Polk PWS110 Subwoofer

The plate amp in this model may unfortunately be faulty. Wire the driver directly to a set of the banana jack inputs and power it with an external amp. Both loud and punchy, which more of a pleasant anomaly than you'd expect.

Audax HD100D25 Tweeters

Used in the legendary Spica TC50 loudspeakers. I've found that they were also used in a Californian speaker from the "Lancer" company, a 3-way with 12" woofer bookshelf type which have to have been from the same time period. Useful to know of a source for potential harvesting...and I don't mean the JBL Lancer speakers or the early Lancer speakers with...

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