2010年2月4日 · Let's look at the results with an eye towards replacement. The top graph (magenta square) is very well matched with a series string of three 1N3595 diodes (hollow green square). Simply can't do much better than that.

2006年7月26日 · The STV-4H are represented by 4 diodes and the STV-3H is represented by 3 diodes. Is it really the case, if yes, what kind of diodes could have approx. the same temp variation. Or could it be replace with another thermistor having a PTC (positive temperature coefficient) that could be glue to the heatsink.

2020年6月14日 · Has anyone found a good solution/replacement for replacing Sanyo STV-3H Varistors? I repair old stereo equipment from the 70's and this was a common part in many amplifier designs from several popular manufactures. Sanyo stopped manufacturing them years ago and has no cross reference to a replacement. Thank you.

2018年5月14日 · The diode test range on your meter is expecting one P-N junction to test, an STV3 is 3 junctions, which gives some meters problems. You could try the 'ohms' range but cross check any readings you get with the old diodes before drawing any …

2025年3月4日 · Find many great new & used options and get the best deals for NOS Vintage STV-3H Bias Diode Varistor for Pioneer Marantz etc (Qty Available) at the best online prices at eBay! Free shipping for many products!

2011年1月16日 · Anyone know of a replacement or a good substitute for a STV 03h biasing diode. Thanks

2010年2月5日 · Certainly my testing was limited to what I had laying around, but I'd still like to find a combination of small-signal diodes that would work better to replace the STV-3H, as the UF4004's are pretty clunky to work with in this application.

2006年7月26日 · The bias generators using stv usually have a small adjustment range. Many time folks change the silicon in the output stage which changes the required bias generators min,max, even using the original stv do not provide the proper adjustment range.

2013年8月19日 · アンプのパワートランジスタの周辺にバリスタというSTV－3Hという部品が、パワートランジスタと同じヒートシンクにネジ止めされています。

2011年5月2日 · The STV-3H is a string of (3) diodes in one package. They are typically used in the bias string, mounted to the heat sink (this is important), to sense output transistor temperature & adjust the bias accordingly.