Author Topic: Boogieman Version of the DS-5  (Read 948 times)

sonicus

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Boogieman Version of the DS-5
« Reply #30 on: June 08, 2013, 01:56:58 PM »
Edwin,     I was merely thanking Terry for his acknowledgement. No circles , LOL !
 
 Have you seen the schematic for the Boogieman version?  I have not .    It it clearly has differences from the Alembic DS-5  such as the trim pots ,etc.... We have both seen the Alembic original and have both built such devices and therefore we both know that design and both know the specs and tolerances , agreed.
 
     I am familiar with what I see in both. What are the capacitor ratings in the Boogieman . How far can the trimpots go out of alignment  after banging around  from  transportation etc ...., what are the variables in voltage output?  What is the rating in Milliamps to accommodate  loads such as  Instruments with full LED features .  There is no disclosure.
 
    The handwringing  is about lack of specifications  and disclosure . Like you wrote  It's clearly a caveat emptor situation. For me it is not  sitting in the corner cowering with fear about frying my electronics LOL,___ Edwin !
 It might be prudent to protect those who are LESS familiar with such designs then you and I and to point out concerns and raise questions , both short term and long term and with looking out for others with positive intent .  That's where I am coming from Brother ______

keith_h

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Boogieman Version of the DS-5
« Reply #31 on: June 08, 2013, 04:19:21 PM »
The trim pots are quite common on a regulated power supply. I'm looking at building a small regulated supply for my series bass. Given the design of the original DS-5R what I am doing is overkill but I prefer regulated to unregulated power supplies. My intent is to use LM317 and LM377 voltage regulators. The output is adjusted by the values of certain resistors in the circuit. I am planning on using fixed values but if I wanted a general purpose mutli-voltage supply I would use trim pots.  
 
While I think the Boogieman is on the expensive side given the cost of components I agree with Edwin in that once the voltages and pin-outs are verified I would have no problems using it as a power supply for my series.  
 
Keith

sonicus

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Boogieman Version of the DS-5
« Reply #32 on: June 08, 2013, 04:47:59 PM »
Keith ,
         I agree  with as you write :  
The trim pots are quite common on a regulated power supply
 
The output is adjusted by the values of certain resistors in the circuit. I am planning on using fixed values but if I wanted a general purpose mutli-voltage supply I would use trim pots.  
 
I agree  that from the point of keeping the +/-V output from going out of spec using fixed value resistors is prudent on your part .  That is one of my concerns.  As well as for those individuals that are not electronically inclined to check and verify voltage specs and pinouts nor want to have to be bothered about that because the product was not from Alembic Inc.  
 
   Best Regards  
 
     Wolf

keith_h

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Boogieman Version of the DS-5
« Reply #33 on: June 08, 2013, 05:14:02 PM »
Wolf,  
I have no qualms with using pots. My decision is more complexity than reliability.  
 
In my much younger years when I was doing electrical engineering I used trim pots in many manufacturing applications. I can even say I used some in military equipment. Both of these are highly abusive environments and did not see problems once the pots were set. The advantage was as other components aged or needed to be replaced a quick adjustment of the trim pot allowed everything to be brought back into specifications.  
 
I don't know the backgrounds of all of the folks here but a general hobbyist would be able to build a power supply for the series with little trouble. Whoever this Boggieman is seems to be more than a hobbyist although my personal opinion is he's a jerk. The biggest hassle for me is finding a box and being able to drill it cleanly since I do not have access to a drill press.  
 
Keith

sonicus

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Boogieman Version of the DS-5
« Reply #34 on: June 08, 2013, 05:44:23 PM »
Keith,  
           As you wrote regarding trimpots I agree again that as other components aged  or needed to be replaced the trim pot allowed everything to be brought back into specifications   As was and is the case with my experience with trimpots .My concern is that in the Boogieman unit we do not know what the worst case scenario could be on the upper +/-V .    
  A bit different then ;  
 When a trimpot on a Dolby unit or an alignment of an AMPEX AG440C ( for example ) is out of spec. you just get bad sound for the most part.  
 
 Best Regards,
 
Wolf

811952

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Boogieman Version of the DS-5
« Reply #35 on: June 08, 2013, 05:51:24 PM »
My father owns and maintains (among other things) a directional AM radio station with different day/night patterns and power.  That beast is trim-pot city, and they're big.  This place needs a trim pot thread with pictures.  ;-)
 
John

sonicus

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Boogieman Version of the DS-5
« Reply #36 on: June 08, 2013, 06:07:23 PM »
John,
        Cool , __ I once worked in a  Television transmitter room. Trim pots , wave guides, water cooled  klystron tubes , vector scopes  . etc ... ... and I got a huge daily exposure of RF Radiation.

811952

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Boogieman Version of the DS-5
« Reply #37 on: June 08, 2013, 07:21:57 PM »
The goodle days, as John Hartford would say..  
 
John

sonicus

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Boogieman Version of the DS-5
« Reply #38 on: June 08, 2013, 09:08:12 PM »
John ,
          Yes   __ in some ways ,and other ways not.   I never much liked the  3AM  to 11AM Shift in time for the sign off  test pattern and then the following maintenance and alignments and adjustments . Those water cooled klystrons needed the distilled  coolant water checked and filled daily on schedule as I remember .  lots of heat , power & radiation . The radiation crept up  on me and made me sick.

terryc

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Boogieman Version of the DS-5
« Reply #39 on: June 10, 2013, 02:23:35 PM »
Looking at it another way...
I have a Nissan Almera which has done 540K miles and because I am an ex mechanic I put the best oil in the motor as well as filters, all my tools are either Britool, Facom or Snap on(some I have had for over 40 years and are still in good condition). I like to cook so I buy the best ingredients I can afford, I sometimes restore furniture so I use top quality polishes etc so why buy another brand which maybe okay for your needs when for a few pounds(or dollars) more you are getting a guaranteed product that will last for a long time and give the quality you expect.
Anyway that's my take on it(Still loyal to Alembic though lol)

edwin

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Boogieman Version of the DS-5
« Reply #40 on: June 10, 2013, 08:01:32 PM »
Sorry, I've been a little cranky over the last few days.

811952

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Boogieman Version of the DS-5
« Reply #41 on: June 12, 2013, 05:49:34 AM »
Sorry, I've been a little cranky over the last few days.
 
I'm pretty sure there's a pot to adjust that.  ;-)
 
HBD to Xander, by the way.  :-)
 
John

bonesrad

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Boogieman Version of the DS-5
« Reply #42 on: June 27, 2013, 10:13:14 PM »
Just thought I'd give a quick update.  FWIW, I've been using the Boogieman unit for a few weeks now and it's been performing quite well.  It's very compact does what I need out of a Series bass power supply.  I still use my DS-5R on my rack mount rig but I like how the little Boogieman unit works with my Super Bassman.
 
Bones

sonicus

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Boogieman Version of the DS-5
« Reply #43 on: June 29, 2013, 12:36:17 AM »
Bones  ,
Did you test and verify the voltage potential and pin out before plugging in your Series Bass ?  
I am still wondering what the maximum voltage output would be IF the trim pots were out of calibration.  
                     Some generic units have a very wide operating range such as this one ;
 
http://www.everychina.com/buy/c-zbfd930/p-40344710/showimage.html
 
Not the same as the Boogieman unit but it would be prudent to know what the specs of the Boogieman unit really are to protect your Alembic investment.  I think that is just reasonable.
  Alembic  had a wonderful reissue of the DS-5 , I purchased one !  It's great.
 
         Edwin , _____I get cranky  sometimes as well ,  were just human after all .  I hope you and your family are well.
 Happy belated Birthday to Xander !
 
    Sonic Regards to all _____