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pioneered by SwTPC, produces a light output that is closely proport ional to the sound level in each channel. There are no circuits that produce a lag in light response, other tha n the lamps in the display itself. Lamp power is changed at a 60 per second rate. The four channels are generated by op-amp

Each PDF file will contain one of these -- an SWTPC catalog; a test report of an SWTPC product (by Popular Electronics or Radio Electronics); or, "extra" content. Right-click (or left-click, if desired) on any image (or any »» blue text ) shown below to call up a PDF file.

Southwest Technical Products Corp (SWTPC) was an electronics design and manufacturing firm that opened its doors in 1967. In late 1975, they began shipping the SWTPC 6800, a computer designed around Motorola's new 6800 microprocessor.

2004年2月27日 · I built the SWTPC M/M/M guitar 60 watt amplifier many years ago. It has two channels, but four inputs. Channel two contains tremolo, fuzz, and reverb. I also beefed up the output and power supply capacitors. I use it on a regular basis today in 2009. It sounds great with a tight bottom and clear highs.

2020年1月21日 · Yes, I do have a DBT. And if you look at one of the SWTPC catalogs online, they specify that the 207 is the kit, which retailed for $75 and the 207/A is the Assembled unit which retailed for $105. Mine are the 207/A according to the screen printing on the faceplates.

2019年11月7日 · This thread is to document the rebuild, measurement and analysis of a SWTPC Universal Tiger (UT) original version amplifier. INTRODUCTION There are many...

2007年1月7日 · I decided to simulate the SWTPC Universal Tiger using newer high speed, high beta output devices. Here is an old thread with the schematic...

2024年6月2日 · This is a compressor/expander unit from Southwest Technical Products corporation. It uses the MC3340 for the compression and expansion functions.

2024年8月19日 · This is the compressor/expander unit from Southwest Technical Products corporation. It uses the MC3340 for the compression and expansion functions. It is in good condition, but I have no way to test it, so it is being sold as is because of its age.