You mean you SP pack is a 6V DC device? In this case the high output
voltage/current of your power pack can also speed up the charging but it is
danger to drive the T-32 at such high current. I remember the initial
charging current of T-32 with AA Ni-cd is over 5Amp.
If your SP pack is AC and directly connected to T-32's external input
connector then it will charge fast but you have to note the output voltage
must not exceed 230VAC.
C.H.Ling
----- Original Message -----
From: "Chuck Norcutt"
> However it does it the SP pack is pretty fast. About 1-1/2 seconds to
> recharge a T32 after a full dump. That's about the same time as my
> homemade inverter takes to recharge a single Alien Bee 800 after a full
> dump. And it can do all four in 6 seconds.
>
> Chuck Norcutt
>
>
> C.H.Ling wrote:
>> I have checked the T-32 schematic, the input pins were directly connected
>> to
>> the 330V high voltage capactior through two diodes and two 27 ohm
>> resistors.
>> For sure the output from the PBG2 is high voltage AC.
>>
>> One of the reason for Piers not able to measure it could be due to a pin
>> is
>> connected to the T-32 power switch, if you don't turn on the T-32
>> (obviously
>> since you cannot connect a T-32 during measurement) there is no output
>> from
>> the PBG2.
>>
>> Chuck, the SP Power Pack you mention could have a lower internal
>> resistance
>> so it charge faster. The PBG2's inverting circuit just like the one
>> built-in
>> T-32 or a bit powerful so it charge a little faster but not as fast as
>> your
>> SP pack. Due to the loading of the charging cap, the output of the
>> inverting
>> circuit is not able to maintain 300V* until the cap is fully charged up.
>>
>> * I have no idea what is the exact AC output voltage from the inverting
>> circuit. Most likely around 210VAC RMS since the charging cap only rated
>> at
>> 330V DC.
>>
>> C.H.Ling
>>
>>
>> ----- Original Message -----
>> From: "Chuck Norcutt"
>>
>>> That makes more sense. If the output was 300v it would likely charge a
>>> T32 in about 1-1/2 seconds as does my SP Systems Power Pack.
>>>
>>> Chuck Norcutt
>>>
>>>
>>> Piers Hemy wrote:
>>>> Actually that's wrong, I just measured the output from PBG2 - it's not
>>>> 300v,
>>>> it just under 6v (but the batteries are getting on a bit). But there
>>>> is
>>>> no
>>>> available output socket when a falsh unit is connected.
>>>>
>>>> Piers
>>>>
>>>> -----Original Message-----
>>>> From: Piers Hemy [mailto:piers@xxxxxxxx]
>>>> Sent: 19 August 2009 16:09
>>>> To: 'Olympus Camera Discussion'
>>>> Subject: Re: [OM] Olympus T28 Twin Macro flash
>>>>
>>>> --snip
>>>>
>>>> And you can also discount using the PBG2, for (as noted by John
>>>> Hermanson
>>>> in
>>>> the past day or so) it outputs 300volts direct to the capacitor of the
>>>> attached T32 (or TPC).
>>>>
>>>> --snip
>>>>
>>> --
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>>>
>>
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