This is a 4-in-1 tape recorder presentation video. Four General Electric reel to reel tape recorders, in the M-8000 series, are shown. The models: M-8020A (rim-drive) M-8010 M-8130 M-8040A (aka the "Swinger") Three of these recorders already have videos on my YouTube channel: M-8020A: https://www.youtube.com/watch?v=VKXLOOZf1V8&t=707s M-8010 (and M-8070A, a similar machine): https://www.youtube.com/watch?v=F50BdLcPOwM https://www.youtube.com/watch?v=yTBSw_APZag https://www.youtube.com/watch?v=_kdhFMkvHf0 M-8040A (Swinger, parts one through three (2009): https://www.youtube.com/watch?v=p1U-hCLDV_w https://www.youtube.com/watch?v=77JNHJIubls https://www.youtube.com/watch?v=QJNuoja9SNc https://www.youtube.com/watch?v=5oMOYHJa530 Magazine Article (only has a small snippet about this a GE M-8000): https://books.google.com/books?id=KCkEAAAAMBAJ&pg=PA46&lpg=PA46&dq=general+electric+radio+receiver+dept.+utica+ny+m8010&source=bl&ots=DdkkclNU_Z&sig=kk4OYSARsI9Mc3HN27zrv_FcDzc&hl=en&sa=X&ved=2ahUKEwj-v_z61s_cAhWBTN8KHTbuCNIQ6AEwBHoECAcQAQ#v=onepage&q=m8010&f=false The M-8130 was acquired this year, so this is its first appearance on my channel. I plan to do two more videos on this recorder, one that shows the insides, and another as a "Maurice Presents", done in Rwandan! All four of these machines are DC bias, DC erase. Another interesting note is that these all use SILICON transistors, which although are ubiquitous today, were at the time these were made, less common. Back in the '60s, Germanium transistors were most common, and the grand bulk of my collection of 1960s tape recorders use Germanium. Yet all of these GEs use silicon transistors, with some of them if not all, made by Fairchild Semiconductor. Another interesting thing is that, as far as I can tell, these recorders are American made (though many parts are imported). The low cost these machines were was to compete the Japanese tape recorders. I believe the cheapness in construction of these recorders in competing was due to higher labor costs in the USA than in Japan. So these used much plastic, even in the mechanism (save for the M-8130A, whose metal mechanism is still as bare-bones simple as possible), and DC bias (to save on the extra electronics needed for a bias oscillator). Even low-cost Japanese capstan-drive recorders at this time almost always had well-built metal mechanisms. I believe these four recorders showcase the only four varieties of BATTERY operated General Electric tape recorders. There were many models, more than the models listed here, but as far as I have seen online, all of the GE battery-powered recorders are a variant of one of these four basic designs. If there are any other GE battery-operated (no AC-only recorders, because there are plenty), ple ... https://www.youtube.com/watch?v=YNQoQyX4epg

This is a very nice cassette tape recorder, very high quality. AC bias, AC erase. Boasts: Cue/Review Counter with Memory Auto, limiter, and manual level control Line-in, Microphone-in, telephone line in Line out, external speaker out, headphone out Bandpass and highpass filters on mic in 0db, -10db, and -20db mic attenuation Pitch control (±15%) Built-in speaker Battery/DC 4.5V in (tip-negative!) Built-in mic Low battery indicator VU meter for both record AND playback Tone control All in all, an excellent machine. ... https://www.youtube.com/watch?v=A0WOzxHJg4c

A classic DC-bias 1990s radio-cassette recorder, hooked up to 2 Allied 3-way 1960s speakers. Good sound! ... https://www.youtube.com/watch?v=MklQmn6CmsA

Evan and I review a number of old mechanical pencisl This is a special audio-only show my friend and I made about the "sensory input" feeling of mechanical "painsols". ... https://www.youtube.com/watch?v=N2mxAiHhvzY