Re: no Bertan, but another possibility

["Paul T. Debevec" <debevec@uiuc.edu>]

Dear Peter,
Ron will be able to pack them up and send them off.  I am off to the APS 
meeting tomorrow morning.
Regards, Paul

Peter Kammel wrote:

>Dear Paul,
>
>It would be great to get those power supplies. We would have them running
>for a while before using them to make sure, but according to the specs
>they are carbon copies of the Bertan brand.
>
>Please ask Penny to send the shipment to me. The harmonized code is
>HTS Number 	90309045
>Brief Description 	Parts and accessories for instruments and
>apparatus for measuring or detecting ionizing radiation, nesi
>GSP (Generalized System of Preferences) 	Status 	Eligible: code "A"
>
>Many thanks to you and Mats.
>
>Peter
>
>On Thu, 20 Apr 2006, Paul T. Debevec wrote:
>
>  
>
>>Dear Peter,
>>
>>Bertan no longer makes power supplies appropriate for wire chambers.  See
>>http://www.bertan.com/products.html
>>The one surplus equipment company that I know of, OE Technologies, had 
>>nothing. 
>>
>>Mats Selen has two Vern Kiebler power supplies.  They look like Bertan 
>>clones.  I think that Kiebler was a small company close to Fermilab.  
>>These supplies are probably 30 years old.  They are listed on the 
>>Fermilab equipment pool.  See
>>http://www-esd.fnal.gov/esd/catalog/main/fermilab/es7125.htm
>>
>>I did a quick check.  All channels give voltage.  I put 3 kV into 10 
>>Mohm.  Current trip at 80% of full scale works.  Trip at 0.8 kV on the 
>>0.1 mA scale.  I can have some one box them and ship them to you if you 
>>thing that these would be useful.  Mats does not need them back any time 
>>soon.
>>
>>Regards, Paul
>>
>>Peter Kammel wrote:
>>
>>    
>>
>>>Dear Paul,
>>>
>>>Thanks for the clear answer. Probably one channel is not worth sending.
>>>If you could contact Bertan that would be great to explore this option.
>>>I will look around here.
>>>
>>>Best regards
>>>
>>>Peter
>>>
>>>
>>>On Wed, 19 Apr 2006, Paul T. Debevec wrote:
>>>
>>> 
>>>
>>>      
>>>
>>>>Dear Peter,
>>>>I never had red Bertan supplies.  I do have (but I do not know where it 
>>>>is) a supply with a gray panel that had one channel negative and one 
>>>>channel positive.  I think that this is the supply that you used when 
>>>>the ePC were here.  I doubt that you will find Illinois property tags on 
>>>>the red supplies that you are using.  If one channel is useful, I can 
>>>>hunt for the gray panel supply.  It is likely with Steve or Matthias.  
>>>>If you need more than one channel, we can see if one of our high energy 
>>>>colleagues can help out.  Both Mats Selen and Steve Errede have done 
>>>>chambers and may have something available.  I could contact Bertan to 
>>>>see if they have some in stock. My guess is no.  I am out of town 
>>>>Friday, but I will look for email later today and Thursday.
>>>>Regards, Paul
>>>>
>>>>Peter Kammel wrote:
>>>>
>>>>   
>>>>
>>>>        
>>>>
>>>>>Dear Paul,
>>>>>
>>>>>The detector group asked us, whether we are using their positive
>>>>>Bertan chamber HV supplies for the ePC (the red type, not the
>>>>>orange one). They need them.
>>>>>I am using two of these HV supplies. I kind of
>>>>>remember that I used one or two of yours for the ePC chamber
>>>>>tests in your lab. But I am not sure whether we shipped
>>>>>yours or are using the supplies from the detector group.
>>>>>I looked in my shipping papers, but did not find evidence
>>>>>for a shipment from Illinois.
>>>>>
>>>>>Thus the following questions arise:
>>>>>
>>>>>- Can you remember how many red = positive HV supplies you have?
>>>>>- Are they still in Illinois? 
>>>>>
>>>>>The answers to both questions would be helpful.
>>>>>If they are in Illinois I would ask you to be so kind to send them.
>>>>>If you had some, but they are not in Illinois, then they are
>>>>>probably here and I would shut down the running chambers and
>>>>>pull them out to see whether there is an Illinois label
>>>>>or identifiable serial number on them.
>>>>>
>>>>>Many thanks
>>>>>
>>>>>Peter
>>>>>
>>>>>
>>>>>
>>>>>     
>>>>>
>>>>>          
>>>>>
>>>>-- 
>>>>Paul T. Debevec
>>>>405 Loomis Laboratory of Physics
>>>>University of Illinois at Urbana-Champaign 
>>>>1110 W. Green St.
>>>>Urbana, IL 61801-3080 MC-704 
>>>>Telephone: 217-333-0285
>>>>Fax: 217-333-1215
>>>>email: debevec@uiuc.edu
>>>>
>>>>   
>>>>
>>>>        
>>>>
>>>Peter Kammel  /  pkammel@uiuc.edu
>>>Department of Physics, Loomis Laboratory
>>>University of Illinois at Urbana-Champaign
>>>1110 West Green Street, Urbana, IL 61801 
>>>Tel (217) 333-5424 / Fax (217) 333-1215   
>>>
>>> 
>>>
>>>      
>>>
>>-- 
>>Paul T. Debevec
>>405 Loomis Laboratory of Physics
>>University of Illinois at Urbana-Champaign 
>>1110 W. Green St.
>>Urbana, IL 61801-3080 MC-704 
>>Telephone: 217-333-0285
>>Fax: 217-333-1215
>>email: debevec@uiuc.edu
>>
>>    
>>
>
>Peter Kammel  /  pkammel@uiuc.edu
>Department of Physics, Loomis Laboratory
>University of Illinois at Urbana-Champaign
>1110 West Green Street, Urbana, IL 61801 
>Tel (217) 333-5424 / Fax (217) 333-1215   
>
>  
>

-- 
Paul T. Debevec
405 Loomis Laboratory of Physics
University of Illinois at Urbana-Champaign 
1110 W. Green St.
Urbana, IL 61801-3080 MC-704 
Telephone: 217-333-0285
Fax: 217-333-1215
email: debevec@uiuc.edu