FS AUS: HP 6632A, Yokogawa 2554 Voltage Current Standard, Ando Decade Inductor - Page 1
Forum section: electronics / general

author: home_listening
author_rank: Contributor
timestamp: February 20, 2024, 12:09:22 pm
content: Hi All,Items are located in Melbourne for pickup, Can post around Australia but I'd prefer not to. All prices are in Australian Dollars. Items just aren't being used and I want to make some room for other toys/tools. Ask questions and I'll answer them.HP 6632A 20V 5A 100W - $350I replaced all the Rifa caps, added nice Hirschmann (made in Germany) terminals on the front, added a switch to connect the sense terminals to the front connectors and added temperature control to the fan for moderate speeds during everyday use. Works great. I really like these supplies and have a couple from the series. This unit has a steel chassis rather than aluminium as most of my others. Includes rack ears, plastic feet and the shorting bars for the rear sense lines. These power supplies are tanks. See photos below.Yokogawa 2554 DC Voltage Current Standard - $400Nice heavy duty unit, Fully diecast case and very accurate. If you need one of these you know how handy it is to be able to dial in either voltage or current easily. The switches are gorgeous on this, but the vernier in particular is wonderful. Hasn't needed any work from me and still is accurate and reliable. 100VAC power input only, you need to supply the step down transformer. See photos below.SOLD:Keysight 6655A 480W / 120V / 4A Power Supply -SOLD2014 manufacturing date printed inside the covers. Great condition overall but a few marks from handling. I have the hard copy manuals and a CD-ROM of control software. Calibration expired around a year ago.Boonton 1120 Audio Analyzer -SOLDIt's a nice simple/focused unit that had a central location on my bench for years as it gets everything done without too much thinking. I replaced all the major caps in this and changed a few op amps for better performance as per a diyaudio.com thread, loopback performance is as pictured. Apparently this responds without any real changes to HP 8903 GPIB commands, there is a piece of software written by P.Millet to drive the HP unit from a PC that is meant to work well.1 Ohm Reference resistor -SOLDMade in Melbourne by J.L.William Scientific Instruments, Not exactly sure of the vintage but its has a classic vintage scientific vibe. I bought this maybe a year ago on this forum for the same price, its a wonderful object but I don't need it like I thought I would. Its oil filled and weighs a fraction under 3KGAndo AM-3301 Decade InductorSOLDReally lovely units from Japan, precision inductors on wonderful switches. The box is diecast aluminium and feels good to the touch. I cleaned the contacts with Deoxit recently and tested on my Ando LCR meter, all good. I have two of these for sale. See photos below.Take care

author: home_listening
author_rank: Contributor
timestamp: February 20, 2024, 12:10:28 pm
content: Keysight 6655A

author: home_listening
author_rank: Contributor
timestamp: February 20, 2024, 12:11:41 pm
content: Boonton 1120

author: home_listening
author_rank: Contributor
timestamp: February 20, 2024, 12:12:22 pm
content: Ando AM-3301

author: home_listening
author_rank: Contributor
timestamp: February 20, 2024, 12:12:53 pm
content: J.M.William 1 Ohm Resistor

author: C-47
author_rank: Regular Contributor
timestamp: February 23, 2024, 07:23:38 am
content: Hi, PM sent re 1 Ohm resistor. Alan.

author: beanflying
author_rank: Super Contributor
timestamp: February 23, 2024, 07:34:48 am
content: Quote from: C-47 on February 23, 2024, 07:23:38 amNext if it is still available my 0.1Williams could do with a friend

author: home_listening
author_rank: Contributor
timestamp: February 26, 2024, 09:00:32 am
content: Reference Resistor is SOLD

author: home_listening
author_rank: Contributor
timestamp: February 29, 2024, 02:57:52 pm
content: Boonton audio analyser is sold pending pickup

author: home_listening
author_rank: Contributor
timestamp: March 11, 2024, 07:32:30 am
content: HP 6632A

author: home_listening
author_rank: Contributor
timestamp: March 11, 2024, 07:33:10 am
content: Yokogawa 2554

author: TERRA Operative
author_rank: Super Contributor
timestamp: March 11, 2024, 12:34:15 pm
content: I have a 2554, they contain a NI-CD battery to allow for use while disconnected from mains which is really handy.

author: home_listening
author_rank: Contributor
timestamp: March 11, 2024, 02:48:01 pm
content: Your video turned me on to them! Thanks, its a great channel.I'm currently using an Advantest TR6150 for voltage and current so this has been left out of the party for a little while now.