But what if I got one of the 1 inch Tascams like you mentioned? Then would I still need a stereo deck? Again this may sound stupid, but those stereo ones you recommended are all half inch or under, so wouldn't transferring it from 1 inch tape to 1/2 inch tape cause some quality loss?
It's not generally recommended to do that. You'd end up sacrificing two tracks from the multitrack to record the stereo mix to, and unless it's a very high-end machine the quality won't be as good as you'd get with a dedicated stereo master recorder.
If it helps, I can go over the various combinations of tape width and track format.
The industry standard for a stereo master was 1/4" half-track at 15 inches/second. The song would be mixed to stereo in this format, and then the vinyl record would be cut from a tape in that format. When CD came along the master disk would be digitized from the 1/4" 15ips stereo master. There was also a 1/2" stereo format in the late 1980s but it didn't gain as much traction.
For multitrack it gets very complicated because there were a lot of standards and it kept evolving as technology improved and new demands came along. Here's a quick history lesson and comparison.
In the early-to-mid 1960s studios tended to record to 4-track on 1/2" tape, which means each track has the same width and sound quality as one channel of the 1/4" stereo master. In effect, they took the stereo tape standard and doubled the width of the tape.
When 8-track appeared they doubled the tape width again so it was 1" 8-track. At the end of the 1960s they doubled it yet again to get 2" 16-track, which conveniently enough used the same width of tape as video machines did at the time (2" quadruplex). Indeed, Ampex' first 16-track machines were actually based on a video recorder chassis.
Anyway, the artists and engineers were still crying out for more and more tracks, but there were a lot of practical difficulties going beyond 2" tape. 3" was tried but never made it into production. So, when 24-track came out around 1972, it was still 2" wide but the tracks and guard bands were squished down a bit to make it all fit. This reduced the quality per-track but by and large it didn't make much difference because there were up to 24 tracks playing and the difference would get lost in the crowd.
Where quality really was important they'd either go back to 2" 16-track, or use noise reduction.
That covers the professional studio-grade formats. The semi-pro formats are where it gets complicated.
In the late 1970s there was a lot of demand for cheaper machines for small or home studios. It's worth bearing in mind that a 24-track recorder with noise reduction cost about as much as a car, if not a house. That led to TEAC/TASCAM and a couple of others developing an 8-track format on 1/2" tape. Each track was now the same width as consumer reel-to-reel, with a corresponding drop in quality, but the machine was semi-affordable and very cheap to run since it didn't need 1-inch tape.
Machines recording in this format include the TEAC 80-8, TASCAM 38, 48, 58 and TSR-8, Otari 5050-8, Studer C278 and the bizarre ITAM 806 which was made from pieces of Revox A77. 'Sweet Dreams' by Eurythmics was recorded on a TASCAM 38, incidentally.
The TASCAM TSR-8 was one of TASCAM's last reel-to-reels and has built-in DBX noise reduction, but the quality was still decent enough that it would work without any noise reduction.
Inevitably there was also demand for budget 16-track machines. TASCAM put out the 8516, MS-16 and ATR60-16 which recorded on 1" tape. As happened with the studio machines, they took the 8-track standard and doubled the size so they had the same width per track. The Otari MX70 also has a 1" 16-track version, and ITAM also made a 1610 machine (not from Revox bits) which also used this format. Again, this could be used without noise reduction but the manufacturers tended to offer it as an option. IIRC the ATR60 has DBX built-in.
In the early 1980s, Fostex also got into the game, but they wanted to compete on price and running costs, so they halved the tape width. This meant 1/4" 8-track, which has the same width per track as a cassette, and at this point you
have to have noise reduction or the results will be a bit rough-sounding. Machines in this format include the Fostex A8, M80, R8 and E8, plus also the TASCAM 388. Interestingly, TASCAM decided to try and one-up Fostex and made a number of machines which recorded 8 tracks onto a normal 1/8" cassette, such as the 238, 488 and 688. Noise reduction was absolutely mandatory for that format.
Fostex also went after the 16-track market and produced the B16, E16, G16 and G16S, which all recorded on 1/2" tape. These were extremely popular and were bought in the thousands for project studios. I believe Enya used an E16, and Bill Nelson (ex Bebop Deluxe) used his B16 until about 2000. Again, the narrow track format needs noise reduction to work properly - the machines came with Dolby C built-in, except for the G16S, which had Dolby S. (They are very failure prone, the Dolby C version is more likely to work these days).
TASCAM produced the MSR-16 (not to be confused with the MS-16) which used the same track format, but DBX noise reduction. I have a feeling there was also a Dolby S version of that too, though again note that the Dolby S chips die easily and cannot be replaced.
The final semi-pro format before digital took over was 1" 24-track, produced from about 1988-1995. TASCAM and Fostex made these machines, the G24 (and G24S?) from Fostex, and the MSR-24 (and MSR-24S) from TASCAM. The stock G24 used Dolby C noise reduction, the MSR-24 used DBX. The S-versions again used Dolby S and again, the S-chips have a high mortality rate.
When I got my MSR-24, I found that the previous owner had recorded their tapes with the noise reduction disabled. It sounded okay as a mix, but decidedly off if you listened to one of the tracks in isolation. I use DBX and have no complaints, but I'm not sure I'd want to mix to it.