RE: [Repeater-Builder] Re: Motorola Power Supply Questiona

[Eric Lemmon]

Graham,

The "SP01" might refer to a power supply that is modified to operate on 230
VAC 50 Hz, or that is fitted with the special Type 1 plug used in New
Zealand, or both.  In any case, the "SP01" does, in fact, mean that the unit
is a "special" product that may have been custom-made for a particular
customer, or that it is equipped with a non-standard option.  I have no info
on a TPN2264 power supply.

73, Eric Lemmon WB6FLY
 

-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of zl3tda
Sent: Saturday, February 27, 2010 5:05 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Re: Motorola Power Supply Questiona

  

Mike, Your comments and help is very much appreciated. You have gone to an
effort to help me greatly and I extend my thanks to you. Great details!

The TPN number is TPN2264 SP01

It has been mentioned to me that the SP could mean either special product or
special price. I haven't actually powered it up yet but will do so shortly
and check output voltages. My reason for asking about this supply is that
well ... I have it and could sure use it if it proves to be suitable for my
application - powering dc devices and a couple of UHF repeaters in my mobile
home when plugged into grid power (the charging circuits would be a bonus
for keeping the batteries topped up - but as has been mentioned already it
would probably not be good for my AGMs.) I got it for next to nothing so saw
it as a cost effective solution. My other option is a switch-mode bench
supply @ 40amps continuous that I also have. A bit concerned about RFI into
radio equipment tho. It is one of the POWERTECH MP3090 models such as this -
http://tinyurl.com/y9nl85a <http://tinyurl.com/y9nl85a>  The model I have
has digital volts and amps meters - so a good way of keeping a tab on
current draws.

What do list members think of using this supply as an alternative to the
Motorola one? I know which is a lot lighter to pick up and move around!

Thanks all

Graham
ZL3TV
New Zealand

--- In Repeater-Builder@yahoogroups.com
<mailto:Repeater-Builder%40yahoogroups.com> , Mike Morris 
wrote:
>
> The photo looks like a repeater supply.
> 
> Many repeater supplies provided a 9.6v DC low
> current output for the receiver and exciter, some
> had a second low current output at 13.5-13.8vDC
> at 3-4 amps for the other audio stages, and most
> had an unregulated (as high as 16v) high current
> output for the transmitter RF amplifier section.
> 
> The 16vDC is not suitable for high current loads
> that expect 12-14 volts. You will cook / boil your
> batteries.
> 
> The 25-series number is for the power transformer
> only. Motorola parts department always formatted
> their part numbers with a 2-digit prefix to identify
> the type of part.
> See
<http://www.repeater-builder.com/motorola/numerical-parts-categories.html
<http://www.repeater-builder.com/motorola/numerical-parts-categories.html> >
> 
> TB602 is a label for a connector that goes to
> somewhere else in the radio cabinet. It probably
> has the 9.6 or 12v low current, or ?
> Some supplies had a battery charger circuit in
> them. Some had a battery backup section (i.e.
> an automatic load switchover from the mains
> supply to the battery bank.
> 
> Please look for a rubber stamped number somewhere 
> on the chassis 
> that starts with TPN, followed by 4 digits
> and maybe a suffix with some letters and numbers after
> it - something like TPN1095A, or TPN1152B1, or something
> in that format. USUALLY, but not always, there is a letter
> after the 4 digits, occasionally there is a number after the
> letter, and rarely there is a number at the end.
> 
> There is no way to tell exactly what voltages, or features
> your supply has in it without seeing the actual physical
> supply, or looking at the manual.
> If you provide the complete TPN number we can look it
> up to see what type of station (radio) it came from, then
> look at the manual for that station.
> 
> BTW the TPN comes from:
> T = Two way radio product
> P = Power supply, or power supply related
> N = Not frequency sensitive
> .
> The last letter usually was structured like this:
> A Under 25 MHz
> B 25-54 MHz
> C 66-88MHz
> D 144-174 MHz
> E 390-550 MHz
> F 890-960 MHz
> N Not frequency dependent
> See
<http://www.repeater-builder.com/motorola/aaa-numbering-scheme.html
<http://www.repeater-builder.com/motorola/aaa-numbering-scheme.html> >
> 
> Mike Morris WA6ILQ
>

[Repeater-Builder] Re: Motorola Power Supply Questiona

[zl3tda]

Mike, Your comments and help is very much appreciated. You have gone to an 
effort to help me greatly and I extend my thanks to you. Great details!

The TPN number is TPN2264 SP01

It has been mentioned to me that the SP could mean either special product or 
special price. I haven't actually powered it up yet but will do so shortly and 
check output voltages. My reason for asking about this supply is that well ... 
I have it and could sure use it if it proves to be suitable for my application 
- powering dc devices and a couple of UHF repeaters in my mobile home when 
plugged into grid power (the charging circuits would be a bonus for keeping the 
batteries topped up - but as has been mentioned already it would probably not 
be good for my AGMs.)  I got it for next to nothing so saw it as a cost 
effective solution. My other option is a switch-mode bench supply @ 40amps 
continuous that I also have. A bit concerned about RFI into radio equipment 
tho. It is one of the POWERTECH MP3090 models such as this - 
http://tinyurl.com/y9nl85a  The model I have has digital volts and amps meters 
- so a good way of keeping a tab on current draws.

What do list members think of using this supply as an alternative to the 
Motorola one? I know which is a lot lighter to pick up and move around!

Thanks all

Graham
ZL3TV
New Zealand

--- In Repeater-Builder@yahoogroups.com, Mike Morris  wrote:
>
> The photo looks like a repeater supply.
> 
> Many repeater supplies provided a 9.6v DC low
> current output for the receiver and exciter, some
> had a second low current output at 13.5-13.8vDC
> at 3-4 amps for the other audio stages, and most
> had an unregulated (as high as 16v) high current
> output for the transmitter RF amplifier section.
> 
> The 16vDC is not suitable for high current loads
> that expect 12-14 volts.  You will cook / boil your
> batteries.
> 
> The 25-series number is for the power transformer
> only. Motorola parts department always formatted
> their part numbers with a 2-digit prefix to identify
> the type of part.
> See 
> 
> TB602 is a label for a connector that goes to
> somewhere else in the radio cabinet.  It probably
> has the 9.6 or 12v low current, or ?
> Some supplies had a battery charger circuit in
> them.  Some had a battery backup section (i.e.
> an automatic load switchover from the mains
> supply to the battery bank.
> 
> Please look for a rubber stamped number somewhere 
> on the chassis 
> that starts with TPN, followed by 4 digits
> and maybe a suffix with some letters and numbers after
> it - something like TPN1095A, or TPN1152B1, or something
> in that format.  USUALLY, but not always, there is a letter
> after the 4 digits, occasionally there is a number after the
> letter, and rarely there is a number at the end.
> 
> There is no way to tell exactly what voltages, or features
> your supply has in it without seeing the actual physical
> supply, or looking at the manual.
> If you provide the complete TPN number we can look it
> up to see what type of station (radio) it came from, then
> look at the manual for that station.
> 
> BTW the TPN comes from:
> T = Two way radio product
> P = Power supply, or power supply related
> N = Not frequency sensitive
> .
> The last letter usually was structured like this:
> A Under 25 MHz
> B 25-54 MHz
> C 66-88MHz
> D 144-174 MHz
> E 390-550 MHz
> F 890-960 MHz
> N Not frequency dependent
> See 
> 
> Mike Morris WA6ILQ
>

Re: [Repeater-Builder] Re: Motorola Power Supply Questiona

[Mike Morris]

The photo looks like a repeater supply.

Many repeater supplies provided a 9.6v DC low
current output for the receiver and exciter, some
had a second low current output at 13.5-13.8vDC
at 3-4 amps for the other audio stages, and most
had an unregulated (as high as 16v) high current
output for the transmitter RF amplifier section.

The 16vDC is not suitable for high current loads
that expect 12-14 volts.  You will cook / boil your
batteries.

The 25-series number is for the power transformer
only. Motorola parts department always formatted
their part numbers with a 2-digit prefix to identify
the type of part.
See 

TB602 is a label for a connector that goes to
somewhere else in the radio cabinet.  It probably
has the 9.6 or 12v low current, or ?
Some supplies had a battery charger circuit in
them.  Some had a battery backup section (i.e.
an automatic load switchover from the mains
supply to the battery bank.

Please look for a rubber stamped number somewhere 
on the chassis 
that starts with TPN, followed by 4 digits
and maybe a suffix with some letters and numbers after
it - something like TPN1095A, or TPN1152B1, or something
in that format.  USUALLY, but not always, there is a letter
after the 4 digits, occasionally there is a number after the
letter, and rarely there is a number at the end.

There is no way to tell exactly what voltages, or features
your supply has in it without seeing the actual physical
supply, or looking at the manual.
If you provide the complete TPN number we can look it
up to see what type of station (radio) it came from, then
look at the manual for that station.

BTW the TPN comes from:
T = Two way radio product
P = Power supply, or power supply related
N = Not frequency sensitive
.
The last letter usually was structured like this:
A Under 25 MHz
B 25-54 MHz
C 66-88MHz
D 144-174 MHz
E 390-550 MHz
F 890-960 MHz
N Not frequency dependent
See 

Mike Morris WA6ILQ

Re: [Repeater-Builder] Re: Motorola Power Supply Questiona

[Gareth Bennett]

Hiya Graham,
One of the reasons we binned these type of supplies was for excessive AC ripple 
that they produced, just be mindful of this on your adventures with sealed type 
batteries.

By the way, If you need solar panels try this crowd out over in Oz,
http://www.rockby.com.au/searchres.cfm?select=102&offset=31&stock_no=37970 

Quite often they have some unbeatable specials if you are on their mailing list.

Cheers for now

Gareth

  - Original Message - 
  From: zl3tda 
  To: Repeater-Builder@yahoogroups.com 
  Sent: Wednesday, February 24, 2010 9:47 PM
  Subject: [Repeater-Builder] Re: Motorola Power Supply Questiona



  Hey Gareth,

  Nice to hear from you. Thanks for the info on the power supply and I will 
heed your warnings about battery types. I am possibly able to get a circuit 
diagram for this from another group member and this will be very helpful in my 
possible future use of this supply. My primary want for this is for its DC 
supply at 25 odd amps for powering 12v devices in the mobile home, so if it 
pans out it is not that suitable for charging my Gels ... I can live with that. 
Might be the push I need to get some solar panels bought and installed :-)

  Thanks again.

  Graham.

  --- In Repeater-Builder@yahoogroups.com, "Gareth Bennett"  wrote:
  >
  > Hi Graham,
  > 
  > We recently threw out dozens of similar items from Transpower sites that 
were in service as constant voltage float chargers in substations.
  > 
  > What you may have is a constant voltage charger with supervision circuitry 
by the looks of it, and a way to set voltage and overcurrent foldback.
  > 
  > These chargers are great for conventional lead acid batteries, but 
generally do not have temperature compensation for sealed construction cells 
such as SLA / AGM etc. 
  > 
  > Most importantly is to go by the battery manufacturers 
specificationsMore often than not, the charger is the cheapest item in the 
installation.
  > 
  > Regards,
  > 
  > Gareth
  > 
  > 
  > - Original Message - 
  > From: zl3tda 
  > To: Repeater-Builder@yahoogroups.com 
  > Sent: Monday, February 22, 2010 11:20 PM
  > Subject: [Repeater-Builder] Motorola Power Supply Questiona
  > 
  > 
  > 
  > Hello all from down under! I have a Motorola power supply that has come out 
of a repeater installation and I am looking for some info on it. What I am 
mostly wanting to know is what a small row of header type pins are for - 
external meters etc perhaps? The numbers on the transformer are - 25D84880N02 / 
TB602 / Scumacher Elect 93-013-418. I did a google and got a few hits ... all 
NON English :-)
  > 
  > I want to use this to provide the DC power needs in my mobile home while I 
am connected to grid power (got a few hungry devices - Ham radios,audio and Rf 
amps and LCD TV's). I see there is a charging circuit as well and would hope 
this would be suitable to keep my deep cycle batteries topped up - no solar 
panels installed at this time. I am wondering if the charging circuit is able 
to look after my batteries and has 1-2-3 stage charging - bulk, absorption and 
float ... or would it just be float? Having prematurely lost a couple of very 
big deep cycle batteries due to perhaps over zealous charging from the built-in 
charger on the old Trace inverter I have been using, I am keen to look after my 
new set as best I can. Is the charger in this type of supply up to the task or 
would I be best to use a smaller "good" quality three stage charger separate.
  > 
  > Oh ... and to keep it "on topic" - I have a couple of Tait T800 repeaters 
in a rack in the bus for events and festival comms.
  > 
  > Here is a link to what it looks like http://tinyurl.com/yg9p9oy
  > 
  > Any help much appreciated.
  > 
  > Thanks!
  > 
  > Graham Shaw
  > ZL3TV
  > Mid Canterbury
  > New Zealand
  >



  

[Repeater-Builder] Re: Motorola Power Supply Questiona

[zl3tda]

Hey Gareth,

Nice to hear from you. Thanks for the info on the power supply and I will heed 
your warnings about battery types. I am possibly able to get a circuit diagram 
for this from another group member and this will be very helpful in my possible 
future use of this supply. My primary want for this is for its DC supply at 25 
odd amps for powering 12v devices in the mobile home, so if it pans out it is 
not that suitable for charging my Gels ... I can live with that. Might be the 
push I need to get some solar panels bought and installed :-)

Thanks again.

Graham.

--- In Repeater-Builder@yahoogroups.com, "Gareth Bennett"  wrote:
>
> Hi Graham,
> 
> We recently threw out dozens of similar items from Transpower sites that were 
> in service as constant voltage float chargers in substations.
> 
> What you may have is a constant voltage charger with supervision circuitry by 
> the looks of it, and a way to set voltage and overcurrent foldback.
> 
> These chargers are great for conventional lead acid batteries, but generally 
> do not have temperature compensation for sealed construction cells such as 
> SLA / AGM etc. 
> 
> Most importantly is to go by the battery manufacturers specificationsMore 
> often than not, the charger is the cheapest item in the installation.
> 
> Regards,
> 
> Gareth
> 
> 
>   - Original Message - 
>   From: zl3tda 
>   To: Repeater-Builder@yahoogroups.com 
>   Sent: Monday, February 22, 2010 11:20 PM
>   Subject: [Repeater-Builder] Motorola Power Supply Questiona
> 
> 
> 
>   Hello all from down under! I have a Motorola power supply that has come out 
> of a repeater installation and I am looking for some info on it. What I am 
> mostly wanting to know is what a small row of header type pins are for - 
> external meters etc perhaps? The numbers on the transformer are - 25D84880N02 
> / TB602 / Scumacher Elect 93-013-418. I did a google and got a few hits ... 
> all NON English :-)
> 
>   I want to use this to provide the DC power needs in my mobile home while I 
> am connected to grid power (got a few hungry devices - Ham radios,audio and 
> Rf amps and LCD TV's). I see there is a charging circuit as well and would 
> hope this would be suitable to keep my deep cycle batteries topped up - no 
> solar panels installed at this time. I am wondering if the charging circuit 
> is able to look after my batteries and has 1-2-3 stage charging - bulk, 
> absorption and float ... or would it just be float? Having prematurely lost a 
> couple of very big deep cycle batteries due to perhaps over zealous charging 
> from the built-in charger on the old Trace inverter I have been using, I am 
> keen to look after my new set as best I can. Is the charger in this type of 
> supply up to the task or would I be best to use a smaller "good" quality 
> three stage charger separate.
> 
>   Oh ... and to keep it "on topic" - I have a couple of Tait T800 repeaters 
> in a rack in the bus for events and festival comms.
> 
>   Here is a link to what it looks like http://tinyurl.com/yg9p9oy
> 
>   Any help much appreciated.
> 
>   Thanks!
> 
>   Graham Shaw
>   ZL3TV
>   Mid Canterbury
>   New Zealand
>