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Hiya folks

Just picked up this Sound City Custom 100

I exchanged my ChiWatt T40 and £150 for it - Partridge Transformers and some Mullard tubes in the preamp - I believe the G Code dates it to 1969? What can you tell me about this amp and it's originality?

I also have a hiss that becomes noticeable when turning up the treble and/or presence - any way to deal with this? Cheers

early 1969 post Dave Reeves SC MKIII
looks mostly original.

Hi Dr Hi Tone

Thanks for moving it to the correct section!

How similar to a DR103 would you say it is? What modern production tubes are closest to Mullard EL34s? Thanks!

unfortunately it isn't very much like a HIWATT, but if you like it then that is great!
=C='s were really good but they have stopped production of them and most of them still available are not as high quality as they were a few years ago.

I have been using TAD EL34 STR lately and I am really happy with them.

Dr.HI-TONE wrote:unfortunately it isn't very much like a HIWATT, but if you like it then that is great!
=C='s were really good but they have stopped production of them and most of them still available are not as high quality as they were a few years ago.

I have been using TAD EL34 STR lately and I am really happy with them.

Yeh coming up from a Hiwatt T40 its a huge improvement. At the annual DGGF Barn Jam we will have a 1972 Hylight Hiwatt so there's going to be a lot of comparisons for me.

I put a Mullard CV 12AT7 into the V1 and the "fizziness" seems to have all but gone. Spoke to a good mate of mine this morning who advised me on caps to change and other various bits and pieces.

I have also ordered some TAD EL34STR valves also - thanks for the recommendation

Update on this amp too

Took it to Chandlers Guitar Experience for a recap and for Tim to install a input bypass point - thus essentially making this into a slave amplifier for one of my cabinets. The Preamp is an Alembic F2b feeding this SC and my STA200.

We biased it for 50 watts and I went for a matched pair of Svetlana =C=s however compared to the STA200, even running half power, the MV has to be about 3/4 of the way up to match the volume on the Hiwatt. I think I will go for a matched quad of Svets to bring them both to 100W.

Plugging directly before the Prescence and the amp is SILENT - I cannot tell they are on until I play something.

This amp is feeding my Crescendos and the STA is powering the Hiwatt Purples. Could NOT be happier with the tones I am getting now

having heard some clips courtesy of my dad, I can say it sounds more Hiwattish then I expected from comments here, but more Pete than David. great in combination with Philrobs Alembic and Hiwatt head into my old fanes and Phils 15 inch Crescendos