Thanks for your memories! I could not restore my old account, so i had to register a new one.
Here is some information about nixie based scales i have found since then. Like a small database. Who knows other models and wants to extend it? Thanks in advance.
Type designation: "PO Veda Kiev" 1261VN-3CT.
Country of origin: Soviet Union.
Information processing: TTL ICs.
Display: IN-12 nixies.
Measurement method: Vibrating string.
Production period: probably since 1976.
Photo and/or video URL(s):
leningrad.su/museum/show_calc.php?n=481
storage0.static.itmages.ru/i/10/0830/h_1...59071_8ceb988c8a.jpg
Notes: 1. Can be connected to a specialized external sticker printer. Such a combination is named 1799VTCh-3 "Dina". This printer is not found yet, even though it was very common in the 1970s and 1980s; 2. There exists a rumor (not confirmed yet) about an extremely rare version of this scale equipped with IV-22 VFDs instead of nixies; 3. Early units are controlled using reed-switch based (!) lever selectors, later units are controlled using keyboards, also reed-switch based. Other changes found in later versions include redesigned enclosure, screen printed display face instead of engraved one, number of ICs reduced by circuit optimization, usage of plastic cased 155 series ICs instead of 133 series metal/ceramic cased ICs.
Type designation: "PO Veda Kiev" 9026VN-3D13
Country of origin: Soviet Union
Information processing: Specialized single-chip MCU with internal mask ROM, designed exclusively for this scale.
Display: Flat multi-digit VFDs, therefore slightly off-topic here.
Measurement method: vibrating string.
Production period: 1980s.
Photo and/or video URL(s):
www.eco-time.com.ua/image/art1_im1.jpg
sfrolov.livejournal.com/137485.html
Notes: 1. Jargon nickname for this scale is "Goose". 2. Can be interfaced to a specialized external dot matrix sticker printer called RU-3 (very similar to PU-2M externally, but fully different internally), which is based on 16-bit LSI-11 compatible CPU.
Type designation: "Bizerba" OP-E and OPe MOS.
Country of origin: Austria.
Information processing: Unknown, probably TTL or MOS ICs, depending on type designation.
Display: Combined nixies plus optical readout.
Measurement method: Unknown.
Production period: One unit is known, produced in 1977 (without MOS abbreviation in type designation), and two others with unknown production years.
Photo and/or video URL(s):
m.kleinanzeigen.ebay.de/s-anzeige/bizerb...typ-ope-mos/97518216
m.flickr.com/photos/27020792@N07/3804980977/
wap.ebay.com/Pages/ViewItem.aspx?nborh=h...-RV840-/221143547993
Notes: 1. Models with optical readouts only and no electronics at all were also produced in the 1970s or maybe earlier: OP-3 and OP-10. 2. Probably, the difference between OP-E and OPe MOS models is usage of TTL or MOS ICs, respectively?
Type designation: "Berkel" 176SG.
Country of origin: Netherlands.
Information processing: 4-bit CPU with external ROM.
Display: Panaplex.
Measurement method: Vibrating string.
Production period: One unit is known, produced in 1980.
Photo and/or video URL(s):
www.glowbug.nl/neon/Berkel176SG.html
Notes: None.
Type designation: "Italiana Macchi" tipo Mach 55.
Country of origin: Italy.
Information processing: Unknown.
Display: Nixies.
Measurement method: Unknown.
Production period: One unit is known, produced in 1970.
Photo and/or video URL(s):
www.tubeclockdb.com/forum/Buy-Sell-Trade...tubes-est-1970-.html
Notes: By the way, this company still manufactures fully mechanical analog scales.
Type designation: Cahn 7550
Country of origin: Unknown
Information processing: Unknown
Display: Unknown
Measurement method: Unknown
Production period: Unknown
Photo and/or video URL(s):
wap.ebay.de/Pages/ViewItem.aspx?emvAD=10...412&autoredirect=off
Notes: URL no longer works.
There is also an urban legend about a Soviet fully optical scale from late 1960s and early 1970s, called VO-3K1, and that its enclosure design was reused later in 1261VN-3CT.