Dynatron TC20 mono preamp in orginal condition. See photographs - it's not been recapped or messed with at all.
Valves all present (2x ECC83 and 2xEF86 an 1x unreadble rectifier tube) - not tested. Purchase as a project but just can't find the time to look at it. 
Only thing missing is the bulgin type multi way cable that connect the PSU to the amp - this should be replacable.
Please feel free to ask me if there's anything specific you need to know.
These were very well respected aps in their day and should sound great after a bit of fettling.