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21 pin decoder

Posted: Mon Mar 05, 2018 1:05 am
by GWR_fan
Saw this on special at Hobbyking.

https://hobbyking.com/en_us/dcc-with-21-pin.html

Re: 21 pin decoder

Posted: Mon Mar 05, 2018 8:25 am
by SRman
Looks interesting, and the price is very good, but the range of CV adjustments is limited; note there is no CV5/CV6 high/mid voltage adjustment.

Re: 21 pin decoder

Posted: Mon Mar 05, 2018 7:21 pm
by Mike Parkes
Struggling to work out how it can have 6 functions with such a limited range of CVs. Suspect either one or the other of the description or the CV list is wrong.

Re: 21 pin decoder

Posted: Mon Mar 05, 2018 7:37 pm
by RFS
So its only benefit is that it's very cheap? No CV5/6, no Back EMF, no overload protection etc. With most of the latest locos costing well north of £100, I wouldn't want to spoil my enjoyment by struggling with the problems such a cheap decoder might bring.

Re: 21 pin decoder

Posted: Mon Mar 05, 2018 10:07 pm
by SRman
Could be useful as a function-only decoder. I know there are not too many models using 21-pin decoders for this, but I have one myself, a NSW double-decker interurban unit that uses two 21-pin decoders, but only has the motor in the leading driving car.

Re: 21 pin decoder

Posted: Mon Mar 05, 2018 10:13 pm
by RFS
SRman wrote:Could be useful as a function-only decoder. I know there are not too many models using 21-pin decoders for this, but I have one myself, a NSW double-decker interurban unit that uses two 21-pin decoders, but only has the motor in the leading driving car.


Don't you have a Kernow 4-TC too? I've "wasted" a Lenz 21-pin on mine .....

Re: 21 pin decoder

Posted: Tue Mar 06, 2018 8:00 am
by SRman
RFS wrote:
SRman wrote:Could be useful as a function-only decoder. I know there are not too many models using 21-pin decoders for this, but I have one myself, a NSW double-decker interurban unit that uses two 21-pin decoders, but only has the motor in the leading driving car.


Don't you have a Kernow 4-TC too? I've "wasted" a Lenz 21-pin on mine .....


Oh yes! I forgot those also used 21-pin decoders. I have two of them, like yours, both using Lenz decoders. :)

Re: 21 pin decoder

Posted: Tue Mar 06, 2018 6:55 pm
by Mike Parkes
The latest version of Bachmann 21 pin works fine in the 4TC if you want to retrieve the Lenz Silvers for something more deserving.
It packaged somewhat different to earlier verisons i.e.
https://www.ebay.co.uk/p/Bachmann-36-557-E-z-Command-1-X-21-Pin-4-Function-DCC-LOCO-Decoder-T48/2254377758
Most sellers have not realised it is now 6 function and are still describing it as 4 function so its case of looking for the packaging style (quite why Bachmann did not catalogue the new version as 36-557A is distinct mystery)

Re: 21 pin decoder

Posted: Tue Mar 06, 2018 9:38 pm
by SRman
I do intend getting some of those, Mike, but shopping online makes it more difficult to see what one is getting if one can't get to the model shop.

With that in mind, I have been playing a waiting game, to allow all the old stocks of Soundtraxx based decoders to sell out.

Like you, I cannot understand why Bachmann used the same catalogue number for a vastly different product.

Re: 21 pin decoder

Posted: Wed Mar 07, 2018 4:33 am
by BananaRepublic
Mike Parkes wrote:The latest version of Bachmann 21 pin.....
It packaged somewhat different to earlier verisons....
.....quite why Bachmann did not catalogue the new version as 36-557A is distinct mystery)


Rather than being a new version, it's a completely different decoder (ESU LokPilot Standard) and is not related in any way to the previous 36-557, which was a Soundtraxx product.

The visual difference isn't just limited to a change of packaging either.
The original Soundtraxx sourced 36-557 pcb is green in colour and the newer ESU sourced 36-557 is blue.

SRman wrote:.... I have been playing a waiting game, to allow all the old stocks of Soundtraxx based decoders to sell out.

Like you, I cannot understand why Bachmann used the same catalogue number for a vastly different product.


It really is baffling why the same catalogue number has been reused for a completely different product.
The user manuals (guides) and CV lists and settings are completely different too.
It's not as if they've run out of catalogue numbers.


:?:

Re: 21 pin decoder

Posted: Wed Mar 07, 2018 6:20 pm
by Mike Parkes
Got mine from Model Railway Direct - I emailed before ordering and they said they had all the new version. They did also say they would update the web site so they either have not or now have old ones as they are still listed as 4 function.