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EP-4397-000 .022 Black Bee Capacitor

EP-4397-000 .022 Black Bee Capacitor

Your Price: $8.00


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Product Code:EP-4397-000
Taihan "Black Bee" oil-paper capacitor. .022 uf, 1500 volt.
5 Stars
Tested on a $5000 ESI Teague 2600 LCR
I did not plot a full frequency/linearity Q chart with these, yet, but the Q @ 1KHz is right about 400. This is just about right for an especially good testing bumble bee Sprague type cap, and typical for a good new 55 year old Sprague Mylar film in oil, "Black Beauty" capacitor. The Q went up to 570 as the test frequency was dropped to 400Hz, & up to over 600@300Hz. The Q went down to 220 at 10KHz. The linearity is a tad less extreme going up to the higher frequencies, and less pronounced going down into lower test frequencies, than with the typical vintage paper in oil caps. These test more like the early Mylar in oil caps used in the 1961 Les Paul SG guitars, and some late 1960 Les Paul guitars. The Mylar in oil, was a much better cap than the bumble bee caps. The Sprague bumble bee caps were not highly regarded by engineers & technicians of the 1950s & 1960s. They were kind of regarded as "crap", by anyone who had to repair electronics. These caps are a huge improvement over buying used pulls off e{Pay}. I REALLY REALLY LIKE THESE CAPS! The discontinued ALLPARTS CAPS were also awesome! If these had a working voltage of 400 or 600 volts the Q would be up over 1000. With a Q that high, just go buy Orange Drop caps. The lower Q gives that warmer, sound with a touch of time smear at some frequencies. It is worth repeating. I LIKE THESE! I use that LCR to attempt to find new components that will replicate the sound of vintage components. This includes capacitors, pickups, EQ coils, transformers, pots, resistors, chokes, etc. It's also a great time saving tool for trouble shooting caps in circuit, but I have used it to evaluate these Black Bee caps, for this review.
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Reviewed by: (Verified Buyer)  from Arizona. on 11/15/2015

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