@PE9ZZ "The CA-2k is part of a (now) three-serial successive sequence. And the TU-9k9 a two-serial sequence but those happen much more often of course. A quick eyeball grep revealed one more (CA-3k) but without the raw data (extracting data from a PDF is a pain) I'm not going to bother trying to find a way to find more successive sequences."
Line 24 was building a lot of CA-2000s in October '76. Here's what we have on file:
Model Serial Production Date Entry Date Notes T-tag
CA-2000 246100984 October, 1976 10/31/2023 JDM Last digit hard to read T-tag
CA-2000 246100964 October, 1976 3/28/2021
CA-2000 246100910 October, 1976 4/30/2021
CA-2000 246100799 October, 1976 8/25/2022
CA-2000 246100790 October, 1976 7/31/2022 T-tag
CA-2000 246100654 October, 1976 7/31/2022 T-tag
CA-2000 246100599 October, 1976 7/31/2022 T-tag
CA-2000 246100589 October, 1976 7/31/2022 T-tag
CA-2000 246100579 October, 1976 9/30/2023
CA-2000 246100568 October, 1976 5/31/2018
CA-2000 246100512 October, 1976 9/30/2022 ebay.com.au Japan JDM
CA-2000 246100444 October, 1976 4/2/2018
CA-2000 246100351 October, 1976 2/21/2021
CA-2000 246100302 October, 1976 8/31/2023
CA-2000 246100281 October, 1976 12/31/2021
CA-2000 246100231 October, 1976 6/30/2023
CA-2000 246100220 October, 1976 7/31/2022 T-tag
CA-2000 246100208 October, 1976 5/31/2021 T-tag
CA-2000 246100206 October, 1976 12/31/2021
CA-2000 246100199 October, 1976 7/31/2022 T-tag
CA-2000 246100171 October, 1976 3/31/2024
CA-2000 246100146 October, 1976 7/31/2022 T-tag
CA-2000 246100122 October, 1976 2/21/2021
CA-2000 246100068 October, 1976 1/2/2006
CA-2000 246100066 October, 1976 5/18/2017
CA-2000 246100063 October, 1976 12/30/2005
CA-2000 246100018 October, 1976 5/31/2021 T-tag
Based on what we have in the database, Line 24 only built CA-2000s that month. So to some degree they are all sequential. Newly posted 2461000207 fills the gap between 206 and 208 creating a three unit sequence.
The TU-9900 was built on line 84 in March '78. Here's that month's production on Line 84:
Model Serial Production Date Entry Date Notes T-tag
TU-9900 848030324 March, 1978 12/14/2007
TU-9900 848030229 March, 1978 3/31/2024
TU-9900 848030189 March, 1978 7/1/2019
TU-717 848030477 March, 1978 1/6/2008
TU-717 848030163 March, 1978 11/30/2018
TU-217 848031093 March, 1978 6/20/2005
TU-217 848031015 March, 1978 12/31/2019
TU-217 848030809 March, 1978 4/30/2024
TU-217 848030115 March, 1978 12/31/2019
TU-207 848031573 March, 1978 2/28/2021
TU-207 848031316 March, 1978 8/25/2022 T-tag
TU-207 848030336 March, 1978 2/28/2021
TU-207 848030170 March, 1978 10/31/2020 internet Japan JDM T-tag Sansui (in Japanese)
TU-207 848030020 March, 1978 8/25/2022 T-tag
TU-9900 848030188 does create a two unit sequence. Considering that we have only 3 TU-9900s built on that line that month it's pretty extraordinary they both showed up.
We have 121 CA-3000s in the database. Scanning through those serial numbers I don't see any true sequential numbers. There are several that skip a number like the CA-2000 discussed above. It would only take a well placed new serial number to create a three unit sequence. There are several months with high TU-9900 production.
I can run simple queries like this if you have other questions or observations.
On a different note, I'm thinking of creating a Sansui Model Report that will list all 1600+ models on file. It's not that hard to do but I'm afraid it might open a can of worms with disagreement over models and model names. What do you guys think?
- Pete