Rev blocks
- dougrail
- Driver
- Posts: 1532
- Joined: Mon Mar 14, 2011 5:11 pm
- Location: Salopia; on the edge of Arcadia
Rev blocks
Is it me, or do original Mamod [and maybe MSS] rev blocks have larger steam channels in the rotary thus allowing more steam through than the PPS ones?
- Chris Cairns
- Driver
- Posts: 2366
- Joined: Mon Oct 29, 2007 7:25 pm
- Location: Glasgow, Scotland
Erm, already discussed/displayed here - http://gardenrails.myfreeforum.org/Comp ... t6200.html
Chris Cairns.
Chris Cairns.
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