If you need assistance, please send an email to forum at 4hv dot org. To ensure your email is not marked as spam, please include the phrase "4hv help" in the subject line. You can also find assistance via IRC, at irc.shadowworld.net, room #hvcomm.
Support 4hv.org!
Donate:
4hv.org is hosted on a dedicated server. Unfortunately, this server costs and we rely on the help of site members to keep 4hv.org running. Please consider donating. We will place your name on the thanks list and you'll be helping to keep 4hv.org alive and free for everyone. Members whose names appear in red bold have donated recently. Green bold denotes those who have recently donated to keep the server carbon neutral.
Special Thanks To:
Aaron Holmes
Aaron Wheeler
Adam Horden
Alan Scrimgeour
Andre
Andrew Haynes
Anonymous000
asabase
Austin Weil
barney
Barry
Bert Hickman
Bill Kukowski
Blitzorn
Brandon Paradelas
Bruce Bowling
BubeeMike
Byong Park
Cesiumsponge
Chris F.
Chris Hooper
Corey Worthington
Derek Woodroffe
Dalus
Dan Strother
Daniel Davis
Daniel Uhrenholt
datasheetarchive
Dave Billington
Dave Marshall
David F.
Dennis Rogers
drelectrix
Dr. John Gudenas
Dr. Spark
E.TexasTesla
eastvoltresearch
Eirik Taylor
Erik Dyakov
Erlend^SE
Finn Hammer
Firebug24k
GalliumMan
Gary Peterson
George Slade
GhostNull
Gordon Mcknight
Graham Armitage
Grant
GreySoul
Henry H
IamSmooth
In memory of Leo Powning
Jacob Cash
James Howells
James Pawson
Jeff Greenfield
Jeff Thomas
Jesse Frost
Jim Mitchell
jlr134
Joe Mastroianni
John Forcina
John Oberg
John Willcutt
Jon Newcomb
klugesmith
Leslie Wright
Lutz Hoffman
Mads Barnkob
Martin King
Mats Karlsson
Matt Gibson
Matthew Guidry
mbd
Michael D'Angelo
Mikkel
mileswaldron
mister_rf
Neil Foster
Nick de Smith
Nick Soroka
nicklenorp
Nik
Norman Stanley
Patrick Coleman
Paul Brodie
Paul Jordan
Paul Montgomery
Ped
Peter Krogen
Peter Terren
PhilGood
Richard Feldman
Robert Bush
Royce Bailey
Scott Fusare
Scott Newman
smiffy
Stella
Steven Busic
Steve Conner
Steve Jones
Steve Ward
Sulaiman
Thomas Coyle
Thomas A. Wallace
Thomas W
Timo
Torch
Ulf Jonsson
vasil
Vaxian
vladi mazzilli
wastehl
Weston
William Kim
William N.
William Stehl
Wesley Venis
The aforementioned have contributed financially to the continuing triumph of 4hv.org. They are deserving of my most heartfelt thanks.
Registered Member #1521
Joined: Thu Jun 05 2008, 10:46AM
Location: Hungary
Posts: 128
Weird combination, but I want to sell my unused equipment.
Pump:
Pfeiffer TPH 055 turbomolecular pump for sale. It was bought from ebay many years ago, and it was refurbished by a local professional http://bandtservice.hu/en/ and it's in perfectly working condition. I built a controller for the pump from the plans I found in the fusor forums many years ago (I can't find the exact link or the developer of the circuit right now). The outside of the pump have some dents but it doesn't affect the operation or connection. Note that there is no connector to the electrical feedthrough, the connectros are soldered to the wires right now. If needed, I can attach the PCB and the circuit plan of the controller (made with Eagle). The pump has been in my storage for years but I decided to sell it as I don't know if I'll ever use it. I'll ship worldwide. Shipping location: Hungary.
Price: SOLD
DRSSTC: I have a few things left of my big DRSSTC project I would like to sell.
1. Easternvoltage's flexibrute controller. I built it and tested it years ago but it never saw any mosfet or IGBT on its output. In a metal box. I ordered the 229$ version 2. Easternvoltage's modulator/interrupter. Same, tested and built. It has a fiber optic output + 2 fiber optic cable too. 184$ version 3. CM600HA-24H H-bridge plus sink. Tested on low power, they are in working condition.
I don't really want to sell them for pennies, but I really need money. Controller 150$ Modulator 100$ IGBT's 210$
DRSSTC stuff together: 410$ (+ current transformer and GDT transformer as a gift) +shipping.
Registered Member #3324
Joined: Sun Oct 17 2010, 06:57PM
Location:
Posts: 1276
Is the pump in a working condition then? if so, I will gladly take it wih controller and all related info.
Please PM me the price + shippin to the uk (BH189NB)
EDIT:
I do have some concerns about the lack of a splinter shield, was it covered during storage? a screw in there or a bit of metal on the magnetic bearing would make it all a waste.
Registered Member #1521
Joined: Thu Jun 05 2008, 10:46AM
Location: Hungary
Posts: 128
Thomas W wrote ...
Is the pump in a working condition then? if so, I will gladly take it wih controller and all related info.
Please PM me the price + shippin to the uk (BH189NB)
EDIT:
I do have some concerns about the lack of a splinter shield, was it covered during storage? a screw in there or a bit of metal on the magnetic bearing would make it all a waste.
Yes, the turbo pump was refurbished, cleaned and tested by a professional and it works. I couldn't test myself as I don't have a whole vacuum system and any measurement devices. But it spins if I use the controller (tested only on very slow speeds). I bought this pump used already and never used it. I have no idea what caused that dent, all of the pumps had some scratches and dents which that seller sold. After it was refurbished I placed it in a box and never used it, so there should be no problems.
This site is powered by e107, which is released under the GNU GPL License. All work on this site, except where otherwise noted, is licensed under a Creative Commons Attribution-ShareAlike 2.5 License. By submitting any information to this site, you agree that anything submitted will be so licensed. Please read our Disclaimer and Policies page for information on your rights and responsibilities regarding this site.
Turbomolecular pump + DRSSTC stuff
