DIY Dodd Buffer

jtwrace · « **Reply #140 on:** 13 Apr 2010, 02:31 pm »

Quote from: gld on 13 Apr 2010, 02:25 pm

For powering the buffer alone I recommend a 12 volt 26AH battery and a good quality smart charger like the C-Tek that is available from many sources.
gary

+1

See my post above #130. That's what I use...

charger purchase link: https://www.shopatron.com/products/productdetail/part_number=56-171/560.0.23205.0.0.0.0

praedet · « **Reply #141 on:** 13 Apr 2010, 03:28 pm »

Here is a cheaper link

http://www.amazon.com/CTEK-800-Smart-Battery-Charger/dp/B002QUT8IC/ref=sr_1_2?ie=UTF8&s=automotive&qid=1271118303&sr=8-2

gld · « **Reply #142 on:** 14 Apr 2010, 12:57 am »

Mariusz I pm'd you earlier. I can't send you a buffer tomorrow without an address?

Gary

Mariusz · « **Reply #143 on:** 14 Apr 2010, 01:08 am »

Quote from: gld on 14 Apr 2010, 12:57 am

Mariusz I pm'd you earlier. I can't send you a buffer tomorrow without an address?
Gary

Hi Gary
PM send and big thanks for
making this kit available.

Cheers
Mariusz

sl_1800 · « **Reply #144 on:** 14 Apr 2010, 02:22 am »

Gary,

I sent you two PM's on my shipping address. I made a mistake in the first one.

TrungT · « **Reply #145 on:** 14 Apr 2010, 07:03 am »

Can't wait ......

I'm ready

firedog · « **Reply #146 on:** 14 Apr 2010, 08:16 am »

Quote from: jtwrace on 13 Apr 2010, 02:31 pm

+1

See my post above #130. That's what I use...

charger purchase link: https://www.shopatron.com/products/productdetail/part_number=56-171/560.0.23205.0.0.0.0

Does anyone know of a charger like this that one can also use and keep the buffer or whatever unit plugged in? That is a smart charger that charges the battery but lets you run off of current when desired?

jtwrace · « **Reply #147 on:** 14 Apr 2010, 11:14 am »

Quote from: firedog on 14 Apr 2010, 08:16 am

Does anyone know of a charger like this that one can also use and keep the buffer or whatever unit plugged in? That is a smart charger that charges the battery but lets you run off of current when desired?

I actually use this charger and don't disconnect it. Honestly, I don't hear a difference with it connected or not. Mr. Dodd what are your thoughts?

jkelly · « **Reply #148 on:** 14 Apr 2010, 12:11 pm »

Can the tube modules wire connectors be placed underneath (flipped) to
accommodate mounting tubes on top of case?

Jeff

gld · « **Reply #149 on:** 14 Apr 2010, 02:46 pm »

Firedog, I recommend the C-TEK brand smart chargers. I use a model US-7000. I have it connected to the batteries and plugged in all of the time. I cannot hear any differences at all between plugged in and not plugged in. Also this way I never have to worry about the batteries being mistreated.

Jeff, I would have to redesign the module to do that, the way it is now it cannot be mounted from the top.

dBe · « **Reply #150 on:** 14 Apr 2010, 03:11 pm »

Quote from: firedog on 14 Apr 2010, 08:16 am

Does anyone know of a charger like this that one can also use and keep the buffer or whatever unit plugged in? That is a smart charger that charges the battery but lets you run off of current when desired?

My C-tek is silent, at least to me and the half a dozen audiophools that frequent my place.

Highly recommended.

Dave

Mariusz · « **Reply #151 on:** 14 Apr 2010, 04:33 pm »

Gary
check your PayPal.

and........thanks for all your help/assistance.

Having remote control handy will make listening to music a lot more enjoyable.

Regards
Mariusz

gld · « **Reply #152 on:** 14 Apr 2010, 08:21 pm »

First 5 kits shipped!!!

I can't wait to see what you guys think of it!

gary

Mariusz · « **Reply #153 on:** 17 Apr 2010, 03:05 am »

Recieved it today.

That was fast.

....

ebag4 · « **Reply #154 on:** 17 Apr 2010, 03:21 am »

Received miine too!

face · « **Reply #155 on:** 17 Apr 2010, 01:36 pm »

Shouldn't this be in "The Lab"?

jtwrace · « **Reply #156 on:** 17 Apr 2010, 01:37 pm »

Quote from: face on 17 Apr 2010, 01:36 pm

Shouldn't this be in "The Lab"?

At this point it should be in both areas. The Lab will be needed when it's time for questions on assembly.

It is Cheap and Cheerful though

sl_1800 · « **Reply #157 on:** 17 Apr 2010, 02:21 pm »

Gary,

Is there a limit to the length of cables the Buffer can run?

Mariusz · « **Reply #158 on:** 17 Apr 2010, 04:41 pm »

Quote from: face on 17 Apr 2010, 01:36 pm

Shouldn't this be in "The Lab"?

No.
As a complete kit with straight forward instractions ???.....again, No.
Build details, mods, tech questions can be posted in the Lab.
(this is introduction to affordable product but I won't ban

anyone for asking a simple/inocente question).

Mariusz

gld · « **Reply #159 on:** 17 Apr 2010, 05:36 pm »

The only limit to the length of the cables depends on the tube being used. For instance with a 6DJ8 the output impedance is 88 ohms, you could drive really long cables without issues, but with a 12AX7 who's output impedance is 505 ohms, there could be some issues driving long cables. You would have to give it a try and see what happens.
Gary