UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Selectest 50 meter

turretslug · 14th Sep 2019, 10:36 pm

It'll be earlier than a MkII- the "blind" terminal posts are a pointer here, with older test leads tending to have hooked or forked ends to be clamped by the post in the same manner as older-type AVOs with non-4mm terminals. Also, it's quite common for the first version of anything not to be labelled "MkI" etc- designers and marketing folk don't like to create an implication that an improved version might be in the pipeline! Conversely, "MkII" of any product frequently gets trumpeted from the tree-tops. Looks as though this labelled-knob presentation that was replaced by the transparent plastic with underlying labels type in MkII and MkIII versions was reverted to in the end, perhaps because of the clouding problem mentioned earlier.

14th Sep 2019, 10:36 pm	#14
turretslug Dekatron Join Date: Nov 2011 Location: Surrey, UK. Posts: 4,395	Re: Selectest 50 meter - in pink?? It'll be earlier than a MkII- the "blind" terminal posts are a pointer here, with older test leads tending to have hooked or forked ends to be clamped by the post in the same manner as older-type AVOs with non-4mm terminals. Also, it's quite common for the first version of anything not to be labelled "MkI" etc- designers and marketing folk don't like to create an implication that an improved version might be in the pipeline! Conversely, "MkII" of any product frequently gets trumpeted from the tree-tops. Looks as though this labelled-knob presentation that was replaced by the transparent plastic with underlying labels type in MkII and MkIII versions was reverted to in the end, perhaps because of the clouding problem mentioned earlier.