Re: Syncal batteries

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In a message dated 01/03/2010 18:30:48 GMT Standard Time, danrae@... writes:

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Scott Dorsey wrote:
> What has advanced in more recent years has been
> more charging than actual battery chemistry; lithium accumulator chemistry
> has been around for years but actually charging them consistently without
> wrecking them is nontrivial.
>
> The charging circuit in the Syncal-30 itself is just a constant-current
> source, sort of... Fine for NiCds, not really acceptable for NiMh, pretty
> much out of the question for anything else.
> --scott
>
>
>
You could well be right Scott, but since Nicads are getting hard to find
anyway, I will continue to use NiMH cells and charge them with constant
current, from the regular external charger who's number escapes me
(nothing in the Syncal itself), which works for fine me, so far...
Famous last words maybe.

Forgive my ignorance, but why is it not acceptable? I don't think I'm
alone in doing this!

Dan

Dan

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Is the Racal charger you ention the 945S??

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Stuart

Cool HarleyBoyz wants to add you as a friend :)

hotspcoolguy

#1616

I want to add you as a friend so you can see my profile with my pictures.Here is the link:

Re: Syncal batteries

#1614

My manual states that there are 19 cells in the MA934 battery pack, and indeed that is what was in mine ( ex-Iraqi military).  I was easily able to re-cell mine with generic Chinese made D size NiMH cells with solder tags on them.   The capacity is a lot higher than the original Nicads, 7Ah.  Due to the way these are wired and arranged it would be difficult to use a supplied made up pack, since these come shrink wrapped, so to speak.  Maybe the lesser number of cells was to keep the fully charged voltage down a bit.  I think you can find C size NiMH with capacity similar to the original Nicads, but I like having the extra capacity.

I certainly would not recommend using Nicads nowadays with more modern chemistry cells available, since they are prone to leak and the new ones mostly do not.

Dan

ac6ao / g3ncr

Re: SE6861 Battery packs on Ebay

#1615

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In a message dated 28/02/2010 19:12:56 GMT Standard Time, vtuff59795@... writes:

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Sorry Guys,

????????????????????for those people who like to see exactly what sort of silly money some things bring on Ebay have a look at this:

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Amazing!

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BTW, I have some rare as hens teeth Plessey battery packs for the Raven series available at slightly less than those AEG NiCad's ;-)

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73's

Vic

G7PYR

Vic

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Are you having difficulty with e mail, I have asked a couple of times now about 10 way plugs/cable?

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And prey tell us all, how much those 20yr old batteries are?

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Stuart and company

Re: SE6861 Battery packs on Ebay

#1613

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Sorry Guys,

????????????????????for those people who like to see exactly what sort of silly money some things bring on Ebay have a look at this:

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Amazing!

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BTW, I have some rare as hens teeth Plessey battery packs for the Raven series available at slightly less than those AEG NiCad's ;-)

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73's

Vic

G7PYR

Re: S batteries

#1609

They are NiCd batteries and they are 24 volt packs so you want 20 cells
in series.  That's a lot of cells.

You cannot solder to the cells directly without risking damage, but you
can buy cells with tabs attached which you can solder together.  Your local
battery recelling shop can spotweld the whole pack together if you want to
go that way also.
--scott

Re: S batteries

#1607

On the subject of Syncal 30 packs, I have rebuilt a couple of them and I
just could not get the modern D cells to fit inside there.  I wound up
using C cells and packing the extra space in there with packing foam.

This results in very easy assembly that you can do yourself on the kitchen
table, and much greater capacity than the packs had when they were new 
(although a good bit less than if you'd used modern D cells).  Just as
importantly, it means packs that weigh maybe a third less, and that is a
fine thing when you are carrying the radio up a mountain.

Charge rate seems to be okay.   Have not had any problems in a couple years
of occasional use.
--scott

Re: SE6861 Battery packs on Ebay

#1612

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In a message dated 28/02/2010 14:57:50 GMT Standard Time, vtuff59795@... writes:

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WOW!

????????????who was the keen type that paid 212 Euros for two dead SE6861 battery packs on Ebay?

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I paid only slightly more than tah for a brand new old stock 6861 transceiver!!!
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73's

Vic
G7PYR

Vic

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Did you find any 10 way connectors with or without cable ex plessey?

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Stuart

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When wanting a laugh, please include e bay number! cheers

Re: SE6861 Battery packs on Ebay

#1611

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WOW!

????????????who was the keen type that paid 212 Euros for two dead SE6861 battery packs on Ebay?

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I paid only slightly more than tah for a brand new old stock 6861 transceiver!!!

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73's

Vic
G7PYR

Re: S batteries

#1610

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In a message dated 28/02/2010 14:00:08 GMT Standard Time, kludge@... writes:

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They are NiCd batteries and they are 24 volt packs so you want 20 cells
in series. That's a lot of cells.

You cannot solder to the cells directly without risking damage, but you
can buy cells with tabs attached which you can solder together. Your local
battery recelling shop can spotweld the whole pack together if you want to
go that way also.
--scott

Well done Scott

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Thanks

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stuart

Re: S batteries

#1608

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In a message dated 28/02/2010 13:46:06 GMT Standard Time, kludge@... writes:

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On the subject of Syncal 30 packs, I have rebuilt a couple of them and I
just could not get the modern D cells to fit inside there. I wound up
using C cells and packing the extra space in there with packing foam.

This results in very easy assembly that you can do yourself on the kitchen
table, and much greater capacity than the packs had when they were new
(although a good bit less than if you'd used modern D cells). Just as
importantly, it means packs that weigh maybe a third less, and that is a
fine thing when you are carrying the radio up a mountain.

Charge rate seems to be okay. Have not had any problems in a couple years
of occasional use.
--scott

Scott

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Apart from my one Brand new battery pack as it was when I got it 5 or 6 years ago, most of the 3/4 others are all but done for, can you recall how many 'c' types etc, in case anyone wants to try re celling?, and are they Ni cad or Mi mh?

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Cheers

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Stuart

G0TBI

Re: S batteries

#1606

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In a message dated 27/02/2010 21:10:04 GMT Standard Time, M1CCF@... writes:

Ben

While talking of batteries, would it be worth thinking about Syncal 30
battery packs?

Mike B

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Possibly but I'm only working on the 6861 at the moment.

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BN

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Re: S batteries

Michael Buckley

#1605

Ben

While talking of batteries, would it be worth thinking about Syncal 30 battery packs?

Mike B

Show quoted text

On 27/02/2010 20:55, Military1944@... wrote:


SE6861 batteries
I contacted a battery supplier. He can make up a pack of 12 sub C cells
which will fit inside the SE6861 battery case, various capacities.
14.4V 2500mAh 21.00
14.4V 3300mAh 26.00
14.4V 3700mAh 32.00
14.4V 4300mAh 42.00
14.4V 4600mAh 49.00
Anyone interested in making up a bulk order ? I would be happy with the
first option, 2500mAh.
Anyway, let me know and if there's enough interest I'll see what can be
arranged. I would be willing to have them posted here and post them on
afterwards but I'd want payment for the batteries first then payment of
local post costs plus a division of the initial charge.
Ben.

SE6861 batteries

#1604

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SE6861 batteries

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I contacted a battery supplier. He can make up a pack of 12 sub C cells which will fit inside the SE6861 battery case, various capacities.

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14.4V 2500mAh ?21.00

14.4V 3300mAh ?26.00

14.4V 3700mAh ?32.00

14.4V 4300mAh ?42.00

14.4V 4600mAh ?49.00

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Anyone interested in making up a bulk order ?? I would be happy with the first option, 2500mAh.

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Anyway, let me know and if there's enough interest I'll see what can be arranged. I would be willing to have them posted here and post them on afterwards but I'd want payment for the batteries first then payment of local post costs plus a division of the initial charge.

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Ben.

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Re: Manpack battery chargers

Michael Buckley

#1603

On 26/02/2010 07:40, Michael Buckley wrote:
There was talk on one of the groups, about these (Sorry I forget which)

Personally I see no problem with charging Clansman Batteries with the
"official" chargers - DCCU, ACCU and IBMS.
YThey are all quite chehap on the local surplus market

However I have just come across an adveert which might interest some - I
have no idea of cost or if they will sell direct, but they are based in
Newbury, UK

Have a look at PSCH15 Series N1MH/NcCD chargers
www.powersolve.co.uk

Mike B
m1ccf

Re: Racal Comms drive amp

#1602

g6lxk wrote:
Hi,
I have a Racal Communications Drive Amp sub-assembly unit, circa 1981, which seems to be HF broadband, 12-28v DC voltage, Racal Comms part number CA607399. I cannot find any data about it anywhere. I have fed in about 4W at 80m (3.7MHz) and get about 50W output. As it has a pair of BLW95s in the final, I am not sure that it is running at its full potential. Can anybody help me with some information, or perhaps suggest the product that it was used in. I have a photograph of the PCB, which I can you send if necessary.

Many thanks,
Howard, G6LXK

Drive amp CA 607399,  pcb code ST607230

  Howard, I don't know that particular number, but most of those are 28 Volt, and Class A, designed for driver service in one of the 1/2 to 1 kW transmitters that Racal made.  Usually designed for 100 to 200 mW input as well if they are multistage, so 4 Watts in may be a bit much :^)  You may find some circuit details if you search on line for the transmitters, TA1818 or TA1823 is the best I can do from memory.

Also as they were designed to be air cooled with a blower they may get hot without one.

Dan

ac6ao / g3ncr

Re: Racal Handset

#1601

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These sets are not Clansman, nor are they Larkspur. Larkspur handsets use the 6 pin Plessey connector. The headset on e-bay 190375189093 will fit. This is a Racal headset of that era. There are handsets about sometimes with a 6 pin and sometimes with a 7 pin plug. Both are compatible with the 7 pin socket. Obviously only the 6 pin is compatible with the 6 pin socket. Hope this helps.

?????????????????????????????????????????????? kind regards John

????????

Re: Racal Handset

#1600

Hi Scott,
           Check out this item, 190375189093 presently on ebay.

The seller states that it has the proper 6-pin connector for the syncal 30 radio.

Regards

Wal,  G4CGF

Show quoted text

--- In Racal-manpacks@..., Scott Dorsey <kludge@...> wrote:


I have a PRM4090 and a Syncal-30, both missing handsets.  They take a
standard 7-pin or 6-pin military M-S connector, as found in US military
stores (or from Amphenol).  However, if I put a PRC-25 handset on them,
I get very low modulation, making me think the handset output is not
correct.

When I talked about this year before, I got numerous replies telling me
to buy handsets on Ebay, that they were all over.  Well, none of them are
in the US... and after a year of looking I bit the bullet and spent way
too much shipping for a handset marked 5965-99-620-5669 which claims to
be for the Clansman sets.  It has a connector that looks identical except
for one guide mark in a different place.

So.... anyone in the US care to trade for a handset that will actually
work with the Syncal-30?  Or is this the right general handset with the
wrong connector?
--scott

Re: Racal Handset

[email protected]

#1598

John

In principle I agree what you say.

My syncal 30 has the Clansman type socket, but I use it with a 6 pin plug - Ex A13 radio

Mike B
m1cf

Show quoted text

-----Original Message-----
From: John
To: Racal-manpacks@...
Sent: Tue, 23 Feb 2010 11:07
Subject: [Racal-manpacks] Racal Handset

The PRM4090 and the Syncal 30 are not Clansman radios. The Clansman microphone is not siutable for these sets. You have the wrong handset with the wrong connector.

????????????????????????????????????????????????????????????????????????????????????????? kind regards John

Re: Racal Handset

peter

#1599

To add a bit more info, you need a handset with a "Larkspur" type connector. The standard telephone handset used with those radios is the Racal Part number ST719215. The Amphenol connector type used has a normal 'N' keyway orientation, whereas the Clansman ones have the 'F' keyway orientation.

Peter

Show quoted text

--- In Racal-manpacks@..., "John" <wombat5@...> wrote:

The PRM4090 and the Syncal 30 are not Clansman radios. The Clansman
microphone is not siutable for these sets. You have the wrong handset
with the wrong connector.

kind regards John