View Single Post
Old 16th Mar 2018, 10:31 pm   #1
Whaam68
Hexode
 
Join Date: Feb 2007
Location: Luton, Bedfordshire, UK.
Posts: 454
Default Armstrong 625 receiver

Bit of a micro project while I wait for parts to finish the 521 amp. This was available very locally fo £35 on gumtree with the circuit and manual. A very nice chap who was the original owner from new. The tuner scale lighting was out. I listened on headphones at the vendors and it was working but didn’t sound amazing but I was curious and had driven over so bought it. Once home I popped the lid, very easy just a couple of catches and one of the Erie speaker output caps was bulging. I dug in the spares box but had to order a pair of caps. These were fitted along with a new main smoothing can, the output caps I mounted in closed cell foam I recycled from packaging which worked a treat. I also cleaned the pots and switches, fitted led’s in place of the blown 12v scale bulbs and got carried away and recapped the power amp board because I had all the values to hand and it’s one bolt to flip the board up....very nice to work on! The vendor had a CD player on the amp and the woodwork is darker in the middle. I tried to even it with coats of tops scratch remover but it’s still not there. Brought it up on the lamp limiter and just a very brief light of the bulb on switch on then off. I connected up to my record player and very nice sound sprang forth, it seems to have a very good phono stage. At some point I may re cap the preamp board if I can be bothered. I wish Armstrong lit the tuner scale all the time as it’s really pretty but only lights up on Tuner setting ...must’ve been saving leccy in the winter of discontent! Interested to see how it compares to the 521. Mike
Attached Thumbnails
Click image for larger version

Name:	9E97750D-92CE-4434-80CD-4054BE8F5194.jpg
Views:	585
Size:	60.0 KB
ID:	159365   Click image for larger version

Name:	2818CD42-DEE4-44EE-AE5F-DECEB03187BD.jpg
Views:	803
Size:	125.8 KB
ID:	159366   Click image for larger version

Name:	F7D1BB6F-56A1-4C51-8EBB-1DDC62A29CD4.jpg
Views:	582
Size:	117.1 KB
ID:	159367   Click image for larger version

Name:	8744BDEB-2ED6-4F36-AD0B-3CFAD7B8A423.jpg
Views:	540
Size:	56.7 KB
ID:	159368   Click image for larger version

Name:	F0059308-8852-49C1-9D27-900FC91307DF.jpg
Views:	557
Size:	71.3 KB
ID:	159369  

Whaam68 is offline